How to use Mi True Wireless Earphones 2 Pro when making phone calls or listening to music?

1. First, determine whether the volume of the mobile phone is adjusted too low. If the volume is normal, enter the "Bluetooth Settings" of the mobile phone to check whether the "Mobile Audio" and "Media Audio" of the connected device.

2. Reset the headset, restart the phone and then connect to see if there is sound. If it is still silent, connect to other phones for a test.