F9 Fingerprint Touch Bluetooth Headset Earphone + 3800mAH Power Bank

Dear buyer, hello. You are welcome to buy a Bluetooth headset. After receiving the headset, first, open the box and check the Bluetooth headset.

• 1. When I communicate too many voices and communicate with people, the earpiece sounds bad
• Answer: It is possible that the sound from your headphones is too high, which will affect the sound quality or not speak in a place where the Bluetooth signal is unstable.
• 2. When you make an audio call or music, the sound is very low.
•  Answer: you can increase the sound by adjusting the volume key of the phone
• 3. Why the Bluetooth headset I bought cannot be turned on after receiving it, what should I do
• Answer: Due to long-term transportation, the power consumption is very large, and the headset is turned off. The first thing you need to do when you receive the Bluetooth headset charges the headset

Warning

•  1.Dear friends, before use, please charge your earphones.
• 2.When you open the charging case and remove the earplugs, do not block the small holes in the earphones with your fingers. Otherwise, your phone cannot be plugged in.
• 3.Remove the two earplugs from the charging box, the red and blue lights will flash alternately and the two earplugs have been paired successfully, if not, put them back into the charging box and then remove them. them at the same time.
• Bluetooth connection
• 1.After opening the cover, you don’t need to take off the earphones, the two earplugs will automatically turn on and pair with each other.
• 2.When the LED of the left Bluetooth earphone turns off, the Bluetooth earphone will automatically enter pairing mode.
• 3.Turn on your mobile phone’s Bluetooth, search for 《F9》 through the phone’s Bluetooth menu, then click 《F9》 to connect.
• 4.Turn off Bluetooth headsets and press MFB for the 20s. (Red and blue LED will flash, then it will turn off. After 10s, it will flash three times.)
• 5.Press the two Bluetooth headsets for 1s in one click to turn them on. (Red and blue LED will flash twice), then they will be paired automatically.
• 6.When the indicator light of the left Bluetooth earphone turns off, the other will automatically enter pairing mode. (Red LED will flash and light up.)