Edifier Waterproof and Dustproof Sports Wireless Bluetooth Earphone(Shadow Black)

1. Clear calls, long battery life, active noise reduction2. Bluetooth 5.0 chip, low power consumption, energy saving and power saving3. IP54 dustproof and waterproof, Knowles balanced armature, composite diaphragm4. Function: call function, battery display5. Frequency response range: 20-40000Hz6. Input power: 5w7. Input voltage: 5v8. Input current: earphone: 0.2A, battery compartment: 1A9. The charging box provides charging times for the headset: 3 times10. Working time: 6 hours (earphone) + 18 hours (charging box)11. How to use: In-ear12. Audio decoding: LHDC, SBC, AAC13. Bluetooth protocol: A2DP, AVRCP, HFP14. Transmission range: 10 meters15. Battery capacity: earphone: about 40mah, battery compartment: about 400mah16. Power mode: USB charging / built-in lithium battery