1. Version: 5.1
2. DISTANCE: <15 M
3. Launch Power: CLSAA 2
4. Frequency range: 2.402-2.480 Ghz
5. IMPEDANCE: 16Ω
6. Headphone battery capacity: 30MAH * 2
7. Charging Bay battery capacity: 300 MAH
8. Working Hours: about 6 hours ( earphone) about 20 hours (with charging Bay)
9.Standby time: about 60 days
10. earphone Charging time: 45 minutes
11. Charging time: 2 hours
12.can recharge the earphone 3 times