Input : 5V/ 0.25A

Capacity: 40mAh (Earbuds); 300mAh (Case)

Working time: 4 hours (Earbuds)

No. of charge : 3 times (Case)

Longest working time: 12 hours (with charging Case)

Driver type: 10mm

Frequency response: 20-20KHz

Impedance: 16 ohm

Sensitivity : 100db +/- 3db

Bluetooth version: 5.0

Supported profile: HFP, AVRCP, A2DP

Wireless frequency : 2.402GHz – 2.480GHz

Effective range: 10m (Line Of Sight)