Why the headphones does not charge?Please make sure both ends of the USB cable are securely connected. If you use a power outlet, ensure that the power supply is connected securely and the outlet works. If you use a computer, make sure it is connected and the USB port is powered. Turn on the headset and then turn them off. Disconnect and reconnect the USB charging cable.
Bluetooth Version: 4.1 Transmission range: 10 meters Bluetooth mode: Headset Chargeing Time: 1~2hour Audio: Stereo Function: Support music,Multipoint connection,Phone call answering,Song switch Package weight: 0.112 kg Package size (L x W x H): 11.50 x 11.50 x 4.50 cm / 4.53 x 4.53 x 1.77 inches Package Contents: 1 x Bluetooth Earphone , 1 x USB Charging Cable , 1 x Earplugs , 1 x English and Chinese User manual