Mi Bluetooth headphone left and right earphone volume is different

Solution:
1. Replace the larger earmuffs, and make sure that the left and right earmuffs use the same size. If it still can not be solved, please put the earmuffs into the charging box, wait for 10 seconds, take them out and reconnect them, and then compare the volume of the left and right earphones.
2. Put the headphones into the charging box and hold the function button of the charging box for more than 10S. The factory Settings will be restored when the indicator light flashes -> long bright-> flashes -> goes out.After resuming factory Settings, repair and compare the left and right headset volume.
3. Change the connection of other devices, and then compare the volume of left and right headphones.
4. If the volume of left and right headphones is still significantly different, after-sales inspection is recommended.