1.Take the earbuds out of the charging box at the same time, and press and hold to turn off. (Press the touch point of the earphone ----- the white light flashes---- until the red light turns on and then let go, the light will turn off after letting go)
2.Restore factory settings for both ears. (When the earbuds are turned off and out of the box, press and hold for 15S. The phenomenon of the light is: after the white light flashes six times—the red light flashes twice.)
The earphones have been reset, then put them back in the charging case.