ONIKUMA T305 Digital Display Wireless Bluetooth Earphone(Black)

1. Chip: AB56162. Bluetooth range: 10m3. Speaker outer diameter: 8mm4. Frequency response range: 50Hz-20KHz5. Sensitivity: 102db-+3db6. Battery capacity: 30mAh7. Charging compartment battery capacity: 200mAh8. Charging voltage: 3.7V/1A9. Working hours: 4h10. Charging time: 2h11. Standby time: about 60h12. Charging port: Type-C