MI4 Bluetooth 5.0 LED Digital Display Intelligent Noise Reduction True Wireless Bluetooth Earphone (Black)

1. Bluetooth version: 5.0 2. Bluetooth protocol: A2DP, AVRCP, H-SP, H-FP 3. Working frequency: 2.400GHz-2.480GHz 4. Transmission distance: 10M 5. Headphone battery capacity: 55mah 6. Battery capacity of charging compartment: 350mah (with protection board) 7. Music battery life: about 5-6 hours 8. Talk time: about 5-6 hours 9. Standby time: 50H 10. Speaker specification: 6mm 11. Charging interface: TYPE-C interface 12. Charging current: 5V-1A 13. Charging time: about 1 hour 14. The charging compartment is equipped with a Hall switch, and the flip cover automatically turns on and the pair is connected back. 15. Ergonomic design, comfortable to wear 16. Intelligent noise reduction function makes the call clearer 17. Regardless of the primary and secondary earphones, any one can be used separately 18. Touch operation, easy to use