Baseus Earphone Bluetooth Bowie E9 True Wireless Earphones, BT 5.3 in-earphones

About the Item.
Version: V5.3
Communication distance: 10m
Playtime: 5 hours (70% of the volume)
Playtime with a charging case: 20~25hours
Battery capacity: 40 mAh/0.148 Wh (earphones) 400 mAh/1.148 Wh (charging case)
Earphone rating input: DC5V⎓80 mA
Charging case rating input: DC5V⎓450 mA
Earphone rating consumption current: 10 mA
Charging case rating current consumption: 160 mA
Fully charging time: about 1 hours
Frequency response range: 20 Hz-20 kHz
Charge interface: Type-C.