Name: Baseus True Wireless Earphones Model No.: Baseus Bowie EX Material: ABS+PC Wireless version: V5.3 Communication distance: 10m Music playing time: 6 hours (volume at 70%) Playtime with charging case: 25~30 hours Battery capacity: 40 mAh/0.148 Wh (earphones), 400 mAh/1.48 Wh (charging case) Earphone rated input: DC5V⎓80 mA Charging case rated input: DC5V⎓800 mA Earphone rated consumption current : 7.5 mA Charging case rated current consumption: 230 mA Charging time: About 1 hour Frequency response range: 20Hz-20kHz Charge interface: Type-C Suitable for: Compatible with most of wireless devices