F8 Bluetooth 5.1 Ear-Mounted Stereo Wireless Sports Earphone(Black)

1. Bluetooth version: 5.1+EDR2. Talk time: about 15 hours3. Singing time: about 15 hours4. Headphone battery: 75mAh5. Wireless frequency: 2.4GHz6. Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.37. Transmission distance: about 10 meters8. Charging voltage/current: 5V/1A9. Charging time: about 1 hour10. Standby time: about 120 hours11. Speaker impedance: 8mm 32 ohms12. Microphone sensitivity: -42Db13. Material: ABS, silicone14. Charging port: USB15. Accessories: earphone x1, charging cable x1, manual x116. Weight: about 6gFeatures:1. The minimalist line design and the collision of the two materials unlock the aesthetics of craftsmanship and balance beauty and comfort2. According to the shape of the auricle of the human body, disperse the stress points of the ears, so that the ears are evenly stressed and stable and not easy to fall.3. The front and rear sound chambers are designed with a small elevation angle of 108, which leads to a balanced air