1).Bluetooth specification:V2.0+EDR Class2
2).Supported: BluetootHeadset , Handfree ,MP3,FM Radio                          

3).Range of Frequency: 2.4GHz Spectrum
4).Operating distance: up to 10 meters
5).Talk time: up to 6 hours
6).Music playing time: up to 8 hours
7).charging time: within 3 hours
8).Standby time: up to 140 hours