User's Manual

Notes:
The product is high precision electronic product. Please do not
disassembly by yourself.
Avoid fiercely beating, colliding the product.
Avoid using the product in the following environment: High and low
temperature, moist, dustiness, powerful magnetic field and exposed
under sunshine for long time.
Please use the wringed wet cotton cloth to wipe the shell of the product
light, other chemical solution is forbidden to use for washing. Water
shall not drop or splash on the product, so water cup or other objects
full of liquid shall not be placed near the product. 
Use earphones for excessive time or with too loud sound may
permanently strain your ears. 
Please do not use earphones when you cross the street, drive motor
vehicle or bicycle in order to avoid traffic accidents.
Please only use the allowed battery, charger and accessories, use any
other types of products will violate the warranty terms and may be
dangerous. 
Please deal with the abandoned device and accessories according to the
local relevant environmental rules.
If any question during using the product, please contact the local dealer
or contact the customer service center directly.