Chipset:CSRBC3WithA2DPProfile                                                                                                                                                                                                                                                                                                                                                                                                                Built in Excellent sound quality with D.S.P. Solution for echo cancellation and noise suppression.                                                 BulitinTTSEnginingforcaller'snumberbroadcast.                                                                                                   Headset and Handsfree features: Pick UP a call, end a call, reject a call, call redial, transfer a call.volumeadjustment,voice-dial                                                                                                       Bulit In TTS Engining for caller's number broadcast
Bulid in Mp3 Player                                                                                                                               supported mp3 format streaming.                                                                                                                                              Supported TF Card/Micro SD Card.                                                                                                                         Built in FM Transimiter.                                                                                                                 FM Transimiter Type:FHSS.                                                                                                                                   FM Frequency range: 88.1-107.9MHZ.                                                                                                              FM Transimiter: 8 metes                                                                                                          Battery type: Rechargeable Li battery                                                                                                                                               
Talk time: Up to 14hours.by FM,Standby time: Up to 480hours,Charger time: 2~3hours       .