1. Bluetooth version: 5.0
2. Battery capacity: 3.7V/2500mAh
3. Charging input standard: DC5V/1A
4. Charging time: about 3.5 hrs
5. Usage time: about 3 hrs
6. Standby time: about 24hrs
7. Sensitivity: -48+/-2dB
8. SNR: POUT= 20mW, BW<20kHz, 100dB
9. BT effective distance: 10m
10. Speaker impedance: 4 ohm
11. Speaker power: 2*4+6W
12. Battery capacity: 2500mAh
13. Pick-up type: unidirectional condenser mic
14. Pick-up size: 14*6.5mm
15. Mic frequency response: 50Hz~20kHz
16. Supporting protocols: A2DP/AVRCP/HFP/HSP/OPP/HID/SPP/PBAP/GATT/SM
17. Product size: 195*92*92mm
18. Product weight: about 400g