Bluetooth version: 4.1
Support Profiles: A2DP , AVRCP , HFP , HSP
Operation Distance: 10m;
Rechargeable lithium battery: 85mAh
Talking Time: 5-6 hours
Music Playing Time: 5-6hours Charge Time: 2hours 
color:black,gold,silver

1. Different language prompt option, switch in Chinese and English
2. NFC support (phone dependant)
3. Multipoint connection, 1V2
4. DSP and CVC6.0 noise cancellation
5. Take/end/reject call
6. Voice guidance/control, dialing by speaking contacts' name
7. Say "Yes"/"No" to answer/reject a call 
8. Play/pause music
9. Volume/track control
10. Incoming call number read
11. Last number redial
12. Switch between headset and phone for call answering
13. Overcharge/overdischarge protection
14. Hi-fi sound quality