- Bluetooth version: 5.3
- Bluetooth distance: 10m
- Battery capacity: 30mAh
- Charging compartment capacity: 200mah (with lithium battery protection)
- Charge time: 1h
- Working time: 4 hours
- N.W.: 41g/set
- G.W.: 65.5g/set
Packing information : 34*27*43cm, 100sets/ctn/6.5kg