Bluetooth Version: Bluetooth 4.0
Bluetooth mode: Hands free / Headset / AV RCP profile
Music playback time: about 4 hours
Talk time: about 5 hours
Standby time: about 120 hours
Charging time: about 2 hours
The transmission range: about 10 meters
Operating frequency: 2.4Hz~2.4835GHZ 

Features:
1. The function of voice dialing
2. Mini wireless vehicle
3. Stereo universal
4. Support all devices
5. Quick charge technology
6. 1080 P HD audio quality， 3 d surround sound
7. Call report number
8. Telephone voice control answer (say "yes" or "no")