Bluetooth Version：V5.0

Weight：Single Earbud: 5g, Charging Case: 55g, Total Weight: 65g

Frequency：2.402GHz-2.480GHz, Class 2

Battery Capacity：Earbud: 50mAh Polymer Battery Each, Charging Box: 500 mAh Polymer Battery

Sensitivity:97±3dB

Resistance:8Ω

Dynamic Driver:Double 6mm

WaterProof: Ipx4