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