More Details:<br><br><br><br><br><br><br>Specification:Brand Name: QCYModel Number: QY11Bluetooth Version: V4.1Bluetooth Chip: CSR8645Suport Protocol: HFP， HSP， A2DP， AVRCP， APTX.Noise Reduction: CVC6.0Battery Capacity: 90mAhNet Weight: 18.5gSize: 36*30*45mmMusic Time: 7-8 hoursCharging Time: 1-2 hoursTransmission Distance: 10mVoice Prompt: YesMicrophone: YesOptional Color: BlackFunction: Answer\/hang up\/reject\/transfer\/wait\/redial\/mute\/volume adjustment\/multi-point\/pause music\/play music\/switching song\/APP photo<br>Package Included:1 X QCY QY11 Bluetooth Headphone1 X Earmuffs1 X Charging Cable