1. Correspond with: CSR V4.0
2. Supports: HSP, HFP, A2DP, AVRCP
3. Frequency range: 2.4026-2.480GHz
4. Transmitting power: class 2
5. Wireless working distance: ≤10m
6. Charge time: ≤2.5 hours
7. Talk time: ≥6 hours
8. Music time: ≥4.5 hours
9. Standby time: ≥80 hours