1. Channel: stereo
2. Size: 105x20mm
3. Weight: 15g
4. Function: call function, support music
5. Transmission range: 10 meters
6. Standby time: 200 hours
7. Talk time: 4-5 hours
8. Charging time: 2 hours
9. Bluetooth protocol: 5.0
10. Plug type: USB
11. Mode of use: hanging ear type
12. Frequency response: 2.4GHZ
