Wireless Accessories chinese smallest headset bluetooth for phone

1. Correspond With: CSR V4.0
2. Support: HSP, HFP, A2DP, A VRCP
3. Frequency range: 2.4GHz
4. Transmitting power: Class 2
5. Wireless working distance: ≤ 10m
6. Charge time: ≤ 2.5 Hours
7. Talk time: ≥ 8Hours
8. Music time: ≥ 6Hours
9. Standby time : ≥ 100Hours
10.Could connect 2 cellphone at the same time
11.Color: Black,White
12.Color box packaging