1. Bluetooth v4.1 CSR8635
2. Talk time: 8 to 10 hours
3. Standby: 330 hours
4. Music playing: 7 to 9 hours
5. Charge time: 2 hours
6. Operating range: 10 meters
7. Sensitivity: -42dB microphone
8. RF transmit power: 90dB (more stable)
9. Size: 34*24*9.3mm
10. Battery: Rechargeable LiPo battery
11. Battery capacity: 165mA