Bluetooth Version: 5.3

Transmission distance: ≤10M

Case battery capacity: 400mAh

Charging period of case: about 1.5H

Charging interface: type-c

Earbud battery capacity: 30mAh

Charging period of earbud: about 1H

Charging voltage: 4.8~5.5V / 300mAh

Playback time: 80% volume working time 5H

Talk time: 5H

Frequency response range: 20-20khz

Headphone sensitivity: 105db

Microphone sensitivity: -42db

Speaker: 13cm copper ring composite film

Product size: 69.5*51.5*27.5mm

Product net weight: 70g

Built-in timer display function.

Semi-transparent headphone handle design.