ONIKUMA T306 Ear-mounted Wireless Bluetooth Earphone(Black)

1. Chip: JL6973
2. Bluetooth range: 10m
3. Speaker outer diameter: 11mm
4. Frequency response range: 50Hz-20KHz
5. Sensitivity: 108db-+3db
6. Battery capacity: 50mAh
7. Charging compartment battery capacity: 300mAh
8. Charging voltage: 5V/1A
9. Working hours: 4h
10. Charging time: 2h
11. Charging port: Type-C