1.Wireless Version: 5.0
2.Support Profiles: A2DP,AVCTP,AVDTP,AVRCP,HFP,SPP,SMP,ATT,GAP,GATT,RFCOMM,SDP,L2CAP
3. Operation Distance: 10m
4. Transmitting Power: Class 2
5. Frequency Range: 2.402 -2.480 GHz
6. Speaker: Ø40mm
7. Impedance: 32Ω
8. TF card Supported: 128M-32G
9. Radio Frequency Response: 87.5-108MHz
10. Rechargeable Lithium Battery: 400mAh
11. Music Playing Time: 7h
12. Talking Time: 7h
13. Charging Time: 2.5h