1. Channel: Mono
2. Size: 5.5x4.3x8cm
3. Weight: 12g
4. Material: ABS/PP/Silicone
5. Function: call function, support music
6. Transmission range: 10 meters
7. Battery capacity: 110mAh
8. Bluetooth protocol: 5.0
9. Plug Type: USB
10.Mode of use: hanging ear type
11. Wireless transmission, stable connection without delay
12. Built-in ENC noise reduction system, clear sound quality
13. Ergonomic design, comfortable to wear