Communication distance: 10m

Suitable for: Compatible with most of wireless devices

Playtime: 4.5 hours(70% of the volume)

Battery capacity: 35 mAh/0.135Wh(earphones), 400mAh/1.48 Wh(charging case)

Charge interface: Type-C

Charging time: About 1.5 hours

Playtime with charging case: 20 hours

Frequencyresponse rang: 20Hz-20kHz