I12 Bluetooth Headset Wireless In-ear Sports Headphone Bluetooth Earphone White

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How to Use i12 earphone?
Step:
1.Tap the charging case power on switch.
2.Open the charging case and take off the earbuds,then eabuds auto-power on and pairing (important reminder:the condition of earbuds auto-power on is to turn on the switch of charging case)
3.Pair with the device:
1)turn on Bluetooth in the device
2)search bluetooth name "i12" and connect it.
Specification:
1. Driver: 15mm
2. Impedance: 9 OHM
3. Bluetooth version: Bluetooth 5.0
4. Output power: 40mw;Battery capacity 35mAh , charging box is 300mAh .
5. Bluetooth distance: 10 meters
6. Frequency response: 20-20000Hz
7. Operating voltage range: 3.0V-4.2V
8. Powerful noise de-noising circuit (active noise reduction)
9. Charging time about 1-2 hours .
10. Talk time is about 2-3 hours (a pair of earphones use together ),music time about 2-3 hours (a pair of earphones use together ) , Charging box can charge for the earphons about 3-5 times.