JOYROOM JR-BB3 True Wireless Bluetooth Earphones Black

Series name: JOYROOM Jbuds
Model: JR-BB3
BT version: V5.4
Audio codec format: AAC, SBC
BT range: 10m
Water resistance: IPX5
Playtime: about 7-8h (70% volume)
Battery life with charging case: 30h
Calling time: about 4h (90% volume)
Battery capacity: 40mAh (earbuds)/400mAh (charging case)
Charging time: about 1.5h
Charging input: 5V⎓1A
Charging port: Type-C
Frequency response: 20Hz-20KHz
Speaker size: Ф10mm
Material: ABS+PC