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The unique number for your Hailun

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How to find the model? The model is on the right of the plate inside the piano

How to find the number ·Piano: The number of piano is on the upper right corner of the plate inside the piano, such as: 123456 ·Electric piano: The number of electric piano is on the right side of the piano back,such as Q456789. Just enter the number 456789 when checking.

Hailun Piano Co., Ltd Official hotline: 400-8574-500 Customer service mail: service@weitiaozhan.com

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Piano

Intelligent Piano

Guitar

How to keep the piano clean?

a) The piano is best placed in a place where the dust is less clean, because the dust is easy to cause pests and various causes of failure.
b) If the piano with dust, please use wool and other soft things clear, polished with bright oil to keep beautiful ------- wool brush in the piano shop are sold.
c) internal cleaning is best to ask the lawyer to deal with the law, and then the best to play the first hand wash clean, after playing with a wool brush or soft cloth wipe to clean, if usually do not pay attention, love its keyboard Very easy to turn yellow and rare to whiten.

How to prevent pest?

There are many piano inside the use of cloth, the number of its many, and cloth and wool are the same as the wool like to eat things, so usually do not pay attention to those who are often inside the piano cloth was eaten bad, causing Piano damage, the prevention of the first method to keep the piano clean, no dust sand, and then insect repellent into the gauze bag hanging in the piano in order to prevent pests, if found pests, please adjust the technician to complete repair.

About the accessories

Beautiful music, the environment naturally also want a beautiful atmosphere, so the piano are often covered with Lei Si cloth, this cloth is beautiful and generous but also to protect the function of the piano shell, but the other side of the piano sound to the huge, not should be set But also often put in the piano on the appearance of decorative works of art, but it will give birth to a lot of noise, the fact is not appropriate, especially the vase can not be placed, because if the bottle falls when the bottle of water is very easy to flow Piano, is the most to avoid things.

About environment

a) can not be placed in the outer wall of the wall is easy to absorb the moisture outside the air, and usually contains a lot of moisture, so the piano connected to the outer wall, the moisture easily into the piano, the impact is very large, so the most So that the wall on the inside of the room (that is, the room between the house with the wall) side, but not close to the wall, between the wall and the piano to stay at least 15 cm distance to facilitate ventilation and moisture.
b) can not be placed in the window side of the window enough light, most people want to put on the window, but this is wrong, because the window can not avoid the direct sunlight, easy to inhale the moisture in the air to avoid On the window.
c) can not be placed in the stove near the heaters by the heat affected by the paint part of the paint easily damaged, and its heat will also affect the internal organs of the piano, resulting in the tone sometimes change, do not be placed in the heater side.

About temperature

Avoid sudden change of temperature. Try to keep the room temperature be slightly changed. Heat the room slowly in winter, and cool off slowly in summer. So as to shut the heat or cool air. A sudden rise of temperature may cause a sudden drop of humidity, which will result in the drying of the piano. On the contrary, a sudden drop of temperature may cause a sudden rise of humidity, which may make the metal parts more humid and rusty. Especially, avoid gas stoves which may produce lots of vapor.

The harm of dry

a) Cause noises between the keyboard and hammer system, making it hard to play.
b) Cause noises in many corresponding parts.
c) Change tunes,  making it hard to play.
d) Cause deformation and cracks on the outer wooden case.

Pay attention to not too dry

Gentle heat in the room. Place a bonsai of broad leaf plant in the room by the piano, which is damp enough to help control the room humidity.  The best temperature for a piano is 20℃, and the best humidity is 60%. Better use a thermometer and a hygrometer in the room.

About the humidity

Moisture is not good for pianos. The humidity in the mainland of China is normally higher than Euro-America, causing more difficulties to make and keep the pianos. Because the general parts of a piano may be eroded by moisture. So we need to pay more attention to avoid moisture. The best humidity is 50% - 70%.

After damp

Wooden, woolen and leather parts will be expended. Glue will be softened and lose its stickiness.
a) Keys cannot rise again after hitting.
b) Hammer system will become slow and less flexible.
c) Strings and other metal parts will rust, causing broken strings.
d) Soundboard may change tunes and lose volume.
e) Cause deformation of the outer case.
    Get the piano fixed whenever there are any small problems, otherwise it will cause more big issues.

Prevent damp

Ways to Avoid Moisture
a) Prevent the moisture from getting into the room in raining days. So shut the windows and doors of the room where the piano is placed during raining season. Shut the cover every time after use.
b) Better use desiccant or dehumidifier in the room where the piano is placed.
c) Better use electric heaters instead of gas stoves in winter.
d) Better keep a permanent temperature and humidity in the room. Avoid extra desiccation and moisture.

Notice

Please use AC220V power supply.
Use a voltage stabilize if necessary.
Don’t bend or place heavy stuff on the power cords, and don’t put them at places people can be tripped. And don’t twine the power cords on other stuff.
Switch off after use.
Disconnect the power if the piano is not in use for a long time or in thunderstorm.
Disconnect the power and other wires to move the piano.
Avoid direct sunshine.
Do not place the piano at damp places or by the heater.
Place the piano on an even ground.
Use soft fabric to clean.
Do not use gasoline or diluent to clean the piano.
Do not put heavy stuff on the piano.
Gently open the keyboard cover.
Do not maximize the volume all the time to prevent damage on your and other people’s hearings.
We are not responsible for any damages caused by users’ misuse or modification against our instructions.

Warning

Do no place the piano in damp environment to prevent fire or electric shock.
Do not open the top cover by yourself, which may cause an electric shock. Only professionals can fix the piano.
Disconnect the power to clean the piano. Do not touch the socket with wet hands.
Disconnect the power immediately if you sense any strange smells or smokes during use. And call professionals for help.
This product can only be used safely under the altitude of 2000m.
This product can only be used safely in non-tropical climate areas.

After use

1. Wipe the guitar and strings with different care solution for the guitar body and the strings after use to avoid sweating stains from hands.
2. For fingerboard made of rosewood and ebony, use fingerboard spacial detergent to clean first, and then apply fingerboard spacial maintenance fluid on the surface.
3. Use soft fabric to clean the sweat stains on the metal parts every time after use, and use guitar spacial metal maintenance fluid to clean to avoid oxidization.

Notice

1. Before connecting the electric guitar with the speaker, turn all the buttons of the speaker to level 0.
2. Plug the electric guitar's special lead into its output jack and the other end into the speaker's guitar input jack.
3. If you are using the acoustic guitar effector, you must pay attention to the effector's input port. The wire should be connected to the guitar, and the effector’s output wire should be connected to the input of the speaker. Misplacing the position may cause damage to the effector.

Other

1. Tuning should be limited to the standard pitch. If the tuning is too high, the strings get too tight, the guitar neck will bend or the bridge will fall off.
2. When the guitar is not in use for a long time, strings should be relaxed. During the rainy season, better loose strings everyday, just slightly loose.
3. Lubricate the spool gear from time to time, which will help tuning.
4. Keep the guitar away from children, pets or people who don’t know how to maintain guitars, for they may cause serious damage to the guitar.
5. Best storage conditions: 1) 40-50% humidity 2) 25-28℃
Avoid high temperature or direct sunlight, such as car trunk.

Notice of neck

1. Forward adjustment: When the neck is bent downward or the chord height becomes high, the adjustment lever must be adjusted clockwise so that the neck is bent back to a normal angle.
2. Reverse Adjustment: When the neck is bent upwards or buzzing, the adjustment lever must be adjusted counterclockwise to allow the neck to bend back down to a normal angle.
3. To check the neck’s situation: First of all, set up the guitar, from the first fret 1 down to see the last fret, hold the first and the fourteenth fret at the same time , and then check the first chord’s seventh, eighth fret to see if it is 0.25mm high (about the thickness of a piece of paper). Then check all six strings in turns.
To adjust string heights:
1. General folk guitar: 1 fret 1 string 0.5mm 6 string 0.55mm
                                  12 fret 1 string 2.3mm 6 string 2.6mm
2. Full solid folk guitar: 1 fret 1 string 0.5mm 6 string 0.55mm
                                  12 fret 1 string 2.1mm 6 string 2.6mm
3. Classical guitar: 1 fret 1 string 0.65mm 6 string 0.70mm
                                  12 fret 1 string 3.4mm 6 string 3.7mm
If the bolster or bridge is too tall, use a fine sandpaper to polish the bottom according to the above standard. If a single string is too high, you can loosen the string and gently lower the string with a small file. The setting of the chord height may be higher or lower due to personal habits and preferences, but the high chord height will make it difficult to play, and low chord height may easily cause noise. At this point, you can adjust the height of the string from the height of the bridge.

Tuner

The newly purchased guitar should not be tuned to the standard pitch for the first tuning, because the tension is very high when tuned to the standard pitch, and if the new guitar suddenly suffers a strong tension, the body is easily deformed and the strings are easily broken. Gradual tuning is recommended to tune the guitar as the standard pitch. That is to say, tune for 3 times, a bit higer each time and wait for 3-4 hours to tune again, so that the new guitar can get used to the new tension from the strings. To adjust the guitar neck: The neck of each guitar is designed to be reinforced during production, but when it is subjected to string tension, temperature, humidity, etc., the neck is bent to a certain degree. Therefore, it is necessary to adjust the neck of the guitar to a suitable angle with the lever hidden behind the neck, in order to avoid higher or lower strings.

String replacement

1. It is recommended that you replace the strings every other month under normal use. All six strings must be replaced at the same time. Otherwise, when the old and the new strings are used interactively, uneven timbre and inaccurate sound may occur .
2, There are two standard ways of replacing strings:
A, folk guitar:  First, put the the tails of the six strings into the bridge, and secure with string nails. Then put each string through the top of the guitar and start rolling. For new guitars, do not roll the strings too tight.
B: Classical Guitar: Put the tails of the six strings into the bridge and tie knots. Then put each string through the top of the guitar and start rolling. For new guitars, do not roll the strings too tight.
3, Pay special attention when replacing the strings. During the process of fixing and cutting strings, don’t be hurt by sharp strings on the face.

Guitar Maintain

1, Do not put the guitar on the following occasions: direct sunlight, next to the high temperature machines, outdoor with extremely low or very high temperatures, high humidity (such as seaside, basement), dusty places, or places with frequent vibration. All of the above will cause different degrees of damage to the guitar.
2, Do not use general detergent or polish to wipe the guitar, otherwise it will easily lead to paint or color fading. It is recommended to wipe with a professional instrument wipe cloth.
3, The placement of the guitar should be far away from fire and power supply, in order to prevent a fire, or high positions to prevent guitars from falling.

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Traditional piano

Smart piano

Guitar

Warranty for Traditional piano

1, Do not put the guitar on the following occasions: direct sunlight, next to the high temperature machines, outdoor with extremely low or very high temperatures, high humidity (such as seaside, basement), dusty places, or places with frequent vibration. All of the above will cause different degrees of damage to the guitar.
2, Do not use general detergent or polish to wipe the guitar, otherwise it will easily lead to paint or color fading. It is recommended to wipe with a professional instrument wipe cloth.
3, The placement of the guitar should be far away from fire and power supply, in order to prevent a fire, or high positions to prevent guitars from falling. 

1. 3 years for the whole piano. In 3 years from the day of purchase, we are  responsible for the quality problems caused by process and material defects, such as loose pins disables tuning, degumming of backrest, sound board, shell, hammers and keys, and deformed keyboard. Free fixing and changing parts is offered upon presenting the valid invoice and warranty card.
2. One free tuning within a year from the day of purchase provided by the seller.
3. Warranty of accessories
·  One year warranty for attached automatic playing system or mute system
·  3 months warranty for electric parts
·  1 year warranty for descent control device
·  3 months warranty for piano bench

The following conditions are not free services. Users can pay to repair, the maintenance costs include materials and labor service fee.
1. Damages caused by improper use, maintenance and storage.
2. Damages caused by users.
3. Damages caused by environment or climate.
4. Damages caused by natural disasters and other force majeure.
5. Repairs not agreed by Hailun Co. or our authorized sellers.
6. Pianos not purchased from our authorized sellers.
7. Over the warranty period, or cannot present valid warranty card or sales certificates.

Warranty for Smart Pianos

1.  Warranty products of our company must have the company's inspection certificate and purchase credentials.
2. One year warranty is provided from the day of purchase (excluding damages caused by improper use or force majeure). A cost will be charged for repairs after the warranty period. (Notice: Please check the shell of the piano upon unpacking. Replacement won’t be accepted after a week of receiving the product.)
3. If the state has new rules during the warranty period, it will be implemented according to the state regulations.

Warranty for Guitars

· One year warranty is provided from the day of purchase from official stores of Hailun Guitar, excluding damages caused by the user (including shipping, but strings which are consumables in normal use are not included in warranty). If your guitar is purchased from a non-official store, please discuss with the seller.

· We offer life-time charged repair services for the damages caused by users (both shipping and repair fees will be paid by the user). If your guitar is purchased from a non-official store, please discuss with the seller. 

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Hailun intelligent practice accompany Hailun intelligent practice accompany APP is design for all age group learners.Customized soft ware module were programmed for the different age group. Please download "意彩彩票智能陪练" app in Apple store.

please enter user name

logout

Each Hailun piano has a unique number, to inquire whether your piano belongs to Helen genuine.

* Problems?

* Problems?

How to find the model? The model is on the right of the plate inside the piano

How to find the number ·Piano: The number of piano is on the upper right corner of the plate inside the piano, such as: 123456. ·Piano: The number of electric piano is on the right side of the piano back , such as Q456789. Just enter the number 456789 when checking.

Hailun Piano Co., Ltd Official hotline: 400-8574-500 Customer service mail: service@weitiaozhan.com

Fill in information

Popular

Ongoing

Upcoming

Finished

正在举行的运动1

Time2017-08-18-2017-08-18 Platform Hailun piano microblogging StatusOngoing... Join Now

抢手运动2

Time2017-08-18-2017-08-18 Platform Hailun piano micro letter StatusOngoing... Join Now

抢手运动1

Time2017-08-19-2017-08-20 Platform Hailun piano microblogging StatusOngoing... Join Now

竣事了

Time2017-08-15-2017-08-21 Platform Hailun piano microblogging StatusFinished Join Now

Piano

How to keep the piano clean?

a) The piano is best placed in a place where the dust is less clean, because the dust is easy to cause pests and various causes of failure.
b) If the piano with dust, please use wool and other soft things clear, polished with bright oil to keep beautiful ------- wool brush in the piano shop are sold.
c) internal cleaning is best to ask the lawyer to deal with the law, and then the best to play the first hand wash clean, after playing with a wool brush or soft cloth wipe to clean, if usually do not pay attention, love its keyboard Very easy to turn yellow and rare to whiten.

How to prevent pest?

There are many piano inside the use of cloth, the number of its many, and cloth and wool are the same as the wool like to eat things, so usually do not pay attention to those who are often inside the piano cloth was eaten bad, causing Piano damage, the prevention of the first method to keep the piano clean, no dust sand, and then insect repellent into the gauze bag hanging in the piano in order to prevent pests, if found pests, please adjust the technician to complete repair.

About the accessories

Beautiful music, the environment naturally also want a beautiful atmosphere, so the piano are often covered with Lei Si cloth, this cloth is beautiful and generous but also to protect the function of the piano shell, but the other side of the piano sound to the huge, not should be set But also often put in the piano on the appearance of decorative works of art, but it will give birth to a lot of noise, the fact is not appropriate, especially the vase can not be placed, because if the bottle falls when the bottle of water is very easy to flow Piano, is the most to avoid things.

About environment

a) can not be placed in the outer wall of the wall is easy to absorb the moisture outside the air, and usually contains a lot of moisture, so the piano connected to the outer wall, the moisture easily into the piano, the impact is very large, so the most So that the wall on the inside of the room (that is, the room between the house with the wall) side, but not close to the wall, between the wall and the piano to stay at least 15 cm distance to facilitate ventilation and moisture.
b) can not be placed in the window side of the window enough light, most people want to put on the window, but this is wrong, because the window can not avoid the direct sunlight, easy to inhale the moisture in the air to avoid On the window.
c) can not be placed in the stove near the heaters by the heat affected by the paint part of the paint easily damaged, and its heat will also affect the internal organs of the piano, resulting in the tone sometimes change, do not be placed in the heater side.

About temperature

Avoid sudden change of temperature. Try to keep the room temperature be slightly changed. Heat the room slowly in winter, and cool off slowly in summer. So as to shut the heat or cool air. A sudden rise of temperature may cause a sudden drop of humidity, which will result in the drying of the piano. On the contrary, a sudden drop of temperature may cause a sudden rise of humidity, which may make the metal parts more humid and rusty. Especially, avoid gas stoves which may produce lots of vapor.

Pay attention to not too dry

Gentle heat in the room. Place a bonsai of broad leaf plant in the room by the piano, which is damp enough to help control the room humidity.  The best temperature for a piano is 20℃, and the best humidity is 60%. Better use a thermometer and a hygrometer in the room.

The harm of dry

a) Cause noises between the keyboard and hammer system, making it hard to play.
b) Cause noises in many corresponding parts.
c) Change tunes,  making it hard to play.
d) Cause deformation and cracks on the outer wooden case.

Prevent damp

Ways to Avoid Moisture
a) Prevent the moisture from getting into the room in raining days. So shut the windows and doors of the room where the piano is placed during raining season. Shut the cover every time after use.
b) Better use desiccant or dehumidifier in the room where the piano is placed.
c) Better use electric heaters instead of gas stoves in winter.
d) Better keep a permanent temperature and humidity in the room. Avoid extra desiccation and moisture.

After damp

Wooden, woolen and leather parts will be expended. Glue will be softened and lose its stickiness.
a) Keys cannot rise again after hitting.
b) Hammer system will become slow and less flexible.
c) Strings and other metal parts will rust, causing broken strings.
d) Soundboard may change tunes and lose volume.
e) Cause deformation of the outer case.
    Get the piano fixed whenever there are any small problems, otherwise it will cause more big issues.

About the humidity

Moisture is not good for pianos. The humidity in the mainland of China is normally higher than Euro-America, causing more difficulties to make and keep the pianos. Because the general parts of a piano may be eroded by moisture. So we need to pay more attention to avoid moisture. The best humidity is 50% - 70%.

Intelligent piano

Notice

Please use AC220V power supply.
Use a voltage stabilize if necessary.
Don’t bend or place heavy stuff on the power cords, and don’t put them at places people can be tripped. And don’t twine the power cords on other stuff.
Switch off after use.
Disconnect the power if the piano is not in use for a long time or in thunderstorm.
Disconnect the power and other wires to move the piano.
Avoid direct sunshine.
Do not place the piano at damp places or by the heater.
Place the piano on an even ground.
Use soft fabric to clean.
Do not use gasoline or diluent to clean the piano.
Do not put heavy stuff on the piano.
Gently open the keyboard cover.
Do not maximize the volume all the time to prevent damage on your and other people’s hearings.
We are not responsible for any damages caused by users’ misuse or modification against our instructions.

Warning

Do no place the piano in damp environment to prevent fire or electric shock.
Do not open the top cover by yourself, which may cause an electric shock. Only professionals can fix the piano.
Disconnect the power to clean the piano. Do not touch the socket with wet hands.
Disconnect the power immediately if you sense any strange smells or smokes during use. And call professionals for help.
This product can only be used safely under the altitude of 2000m.
This product can only be used safely in non-tropical climate areas.

Guitar

After use

1. Wipe the guitar and strings with different care solution for the guitar body and the strings after use to avoid sweating stains from hands.
2. For fingerboard made of rosewood and ebony, use fingerboard spacial detergent to clean first, and then apply fingerboard spacial maintenance fluid on the surface.
3. Use soft fabric to clean the sweat stains on the metal parts every time after use, and use guitar spacial metal maintenance fluid to clean to avoid oxidization.

Notice

1. Before connecting the electric guitar with the speaker, turn all the buttons of the speaker to level 0.
2. Plug the electric guitar's special lead into its output jack and the other end into the speaker's guitar input jack.
3. If you are using the acoustic guitar effector, you must pay attention to the effector's input port. The wire should be connected to the guitar, and the effector’s output wire should be connected to the input of the speaker. Misplacing the position may cause damage to the effector.

Other

1. Tuning should be limited to the standard pitch. If the tuning is too high, the strings get too tight, the guitar neck will bend or the bridge will fall off.
2. When the guitar is not in use for a long time, strings should be relaxed. During the rainy season, better loose strings everyday, just slightly loose.
3. Lubricate the spool gear from time to time, which will help tuning.
4. Keep the guitar away from children, pets or people who don’t know how to maintain guitars, for they may cause serious damage to the guitar.
5. Best storage conditions: 1) 40-50% humidity 2) 25-28℃
Avoid high temperature or direct sunlight, such as car trunk.

Notice of neck

1. Forward adjustment: When the neck is bent downward or the chord height becomes high, the adjustment lever must be adjusted clockwise so that the neck is bent back to a normal angle.
2. Reverse Adjustment: When the neck is bent upwards or buzzing, the adjustment lever must be adjusted counterclockwise to allow the neck to bend back down to a normal angle.
3. To check the neck’s situation: First of all, set up the guitar, from the first fret 1 down to see the last fret, hold the first and the fourteenth fret at the same time , and then check the first chord’s seventh, eighth fret to see if it is 0.25mm high (about the thickness of a piece of paper). Then check all six strings in turns.
To adjust string heights:
1. General folk guitar: 1 fret 1 string 0.5mm 6 string 0.55mm
                                  12 fret 1 string 2.3mm 6 string 2.6mm
2. Full solid folk guitar: 1 fret 1 string 0.5mm 6 string 0.55mm
                                  12 fret 1 string 2.1mm 6 string 2.6mm
3. Classical guitar: 1 fret 1 string 0.65mm 6 string 0.70mm
                                  12 fret 1 string 3.4mm 6 string 3.7mm
If the bolster or bridge is too tall, use a fine sandpaper to polish the bottom according to the above standard. If a single string is too high, you can loosen the string and gently lower the string with a small file. The setting of the chord height may be higher or lower due to personal habits and preferences, but the high chord height will make it difficult to play, and low chord height may easily cause noise. At this point, you can adjust the height of the string from the height of the bridge.

Tuner

The newly purchased guitar should not be tuned to the standard pitch for the first tuning, because the tension is very high when tuned to the standard pitch, and if the new guitar suddenly suffers a strong tension, the body is easily deformed and the strings are easily broken. Gradual tuning is recommended to tune the guitar as the standard pitch. That is to say, tune for 3 times, a bit higer each time and wait for 3-4 hours to tune again, so that the new guitar can get used to the new tension from the strings. To adjust the guitar neck: The neck of each guitar is designed to be reinforced during production, but when it is subjected to string tension, temperature, humidity, etc., the neck is bent to a certain degree. Therefore, it is necessary to adjust the neck of the guitar to a suitable angle with the lever hidden behind the neck, in order to avoid higher or lower strings.

String replacement

1. It is recommended that you replace the strings every other month under normal use. All six strings must be replaced at the same time. Otherwise, when the old and the new strings are used interactively, uneven timbre and inaccurate sound may occur .
2, There are two standard ways of replacing strings:
A, folk guitar:  First, put the the tails of the six strings into the bridge, and secure with string nails. Then put each string through the top of the guitar and start rolling. For new guitars, do not roll the strings too tight.
B: Classical Guitar: Put the tails of the six strings into the bridge and tie knots. Then put each string through the top of the guitar and start rolling. For new guitars, do not roll the strings too tight.
3, Pay special attention when replacing the strings. During the process of fixing and cutting strings, don’t be hurt by sharp strings on the face.

Guitar Maintain

1, Do not put the guitar on the following occasions: direct sunlight, next to the high temperature machines, outdoor with extremely low or very high temperatures, high humidity (such as seaside, basement), dusty places, or places with frequent vibration. All of the above will cause different degrees of damage to the guitar.
2, Do not use general detergent or polish to wipe the guitar, otherwise it will easily lead to paint or color fading. It is recommended to wipe with a professional instrument wipe cloth.
3, The placement of the guitar should be far away from fire and power supply, in order to prevent a fire, or high positions to prevent guitars from falling.

Traditional piano warranty

Warranty for Traditional piano

1, Do not put the guitar on the following occasions: direct sunlight, next to the high temperature machines, outdoor with extremely low or very high temperatures, high humidity (such as seaside, basement), dusty places, or places with frequent vibration. All of the above will cause different degrees of damage to the guitar.
2, Do not use general detergent or polish to wipe the guitar, otherwise it will easily lead to paint or color fading. It is recommended to wipe with a professional instrument wipe cloth.
3, The placement of the guitar should be far away from fire and power supply, in order to prevent a fire, or high positions to prevent guitars from falling. 

1. 3 years for the whole piano. In 3 years from the day of purchase, we are  responsible for the quality problems caused by process and material defects, such as loose pins disables tuning, degumming of backrest, sound board, shell, hammers and keys, and deformed keyboard. Free fixing and changing parts is offered upon presenting the valid invoice and warranty card.
2. One free tuning within a year from the day of purchase provided by the seller.
3. Warranty of accessories
·  One year warranty for attached automatic playing system or mute system
·  3 months warranty for electric parts
·  1 year warranty for descent control device
·  3 months warranty for piano bench

The following conditions are not free services. Users can pay to repair, the maintenance costs include materials and labor service fee.
1. Damages caused by improper use, maintenance and storage.
2. Damages caused by users.
3. Damages caused by environment or climate.
4. Damages caused by natural disasters and other force majeure.
5. Repairs not agreed by Hailun Co. or our authorized sellers.
6. Pianos not purchased from our authorized sellers.
7. Over the warranty period, or cannot present valid warranty card or sales certificates.

After-sales service for Intelligent piano

Warranty for Smart Pianos

1.  Warranty products of our company must have the company's inspection certificate and purchase credentials.
2. One year warranty is provided from the day of purchase (excluding damages caused by improper use or force majeure). A cost will be charged for repairs after the warranty period. (Notice: Please check the shell of the piano upon unpacking. Replacement won’t be accepted after a week of receiving the product.)
3. If the state has new rules during the warranty period, it will be implemented according to the state regulations.

After-sales service for Hailun guitar

Warranty for Guitars

· One year warranty is provided from the day of purchase from official stores of Hailun Guitar, excluding damages caused by the user (including shipping, but strings which are consumables in normal use are not included in warranty). If your guitar is purchased from a non-official store, please discuss with the seller.

· We offer life-time charged repair services for the damages caused by users (both shipping and repair fees will be paid by the user). If your guitar is purchased from a non-official store, please discuss with the seller. 

Hailun intelligent practice accompany Hailun intelligent practice accompany APP is design for all age group learners.Customized soft ware module were programmed for the different age group. Please download "意彩彩票智能陪练" app in Apple store.