As for the problem that the earphone rings at the same time, first, press and hold the earphone to touch the power-off button until you hear the power-off prompt of the earphone. Then, put the two earphones back in the battery compartment at the same time. Charge them for ten minutes in the street. Then, take out the two earphones again. Turn on the Bluetooth search connection of the mobile phone. You can save the problem that one earphone rings and the other does not. There is no problem with the earphone.