F9 Bluetooth Headphone + 3200mAh Battery+Authentic Code

A. Headset settings1. Real wireless earphones, HIFI sound effects.2. Left and right ears can be used by one or two people.3. Bluetooth working distance: less than 10 meters4. Dual-mode Bluetooth 5.0, ultra-low power consumption.5. Talk time: 3-4H6. Sound and play time: 3-4H7. Headphone battery: 60mAh8. Earphone charging time: about 45mins9.Battery capacity (charging box): built-in 3200mAh high capacity battery    Power-on pairing1. It is not necessary to remove the earphones after opening the cover, the two earplugs will automatically start to pair. 2. Turn on the cell phone bluetooth, find "F9" in the cell phone bluetooth menu and click 9 F9 to connect.    Turn off the headset Turn off bluetooth headsets and press MFB for 20s. (Red and blue LED will flash, then it will turn off. After 10s, it will flash three times.)
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