Bluetooth headset features: - Exquisite fashion design - Support all Bluetooth devices - Clear sound right channel stereo headset - Super power saving - Anti-jamming, strong confidentiality - Then hang up, redial, reject a call, song up and down, mute function Product parameters: *Bluetooth version: V2.1 + EDR Class II *Bluetooth chip: CSR6145 *Bluetooth protocol: HFP??HSP??A2DP *Talk& music time: 12 hours *Standby time: 180 hours