1. Operation Mode: Handheld
2. SOS Button: Yes
3. POC Button: Yes
4. Group Switch: Support
5. BT version: BT4.2+EDR
6. BT protocol: HFP;HSP;A2DP;AVRCP;SPP
7. Transmission range: Up to 10 meters
8. Transmission power: CLASS2,4dbm
9. Sensitivity: 80dBm less than 0.1%BER
10. Audio performance: SBC Decode
11. Audio to Noise ration: Greater than or equal to 75dB
12. Speaker power: 1W/8R (116DB)
13. LED indicator: Blue/green LED Indicator
14. Earphone jack: 3.5mm audio jack, support PPT earphone
15. Battery capacity: 2000mA/3.7V
16. Charging time: 2.5 hours
17. Operation Temperature: -10~50 degree C