Hello, my friend, <br>restore the factory settings of <br>2 earphones at the same time <br>1. Press and hold the earphone for 3-5 seconds, turn off the earphone <br>2. Press and hold the earphone for about 15 seconds, the red and white light will flash quickly (for 2 times) <br>3. Put the earphone Put it in the charging box <br>4. Pick up 2 earphones, the automatic matching is successful
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