Style:Ear Hook Communication:ctors:Bluetooth,USB Use:MP3 MP4 Mobile Tablet PC PSP Portable Media Player Function:MicroNoise Canng,Bluetooth Color:Black Feature:Comfortable wearing Bluetooth Version:V4.1+EDR Chipset:CSR 8610 Built in battery:90 mAh Working range:10 meter working time:6-7 H Stand by:200 H Charging time:1-2 H Warranty:1 Year OEM ODM:welcome