Two years
General Bluetooth headset: product national guarantee, enjoy three guarantees of service, the warranty period is: two years warranty.
Bluetooth headset note:
The service life of Bluetooth headphones is mainly determined by battery life, Bluetooth headphones generally use lithium batteries, usually lithium battery life is repeated charge and discharge 608 times or so.
So try to reduce the number and time of charging Bluetooth headphones.
The charging time of the new Bluetooth headset is between 2-3 hours, and the used one is better between 1-2 hours.