What is Bluetooth absolute volume on the Xiaomi smartphone?

For your reference, here is more information about the Bluetooth absolute volume:
1. You can see the absolute volume option on the Bluetooth settings after connecting the Bluetooth earphone to your phone;
2. Keep the volume of the Bluetooth devices and the phone strictly consistent. Some Bluetooth devices have abnormal volume levels due to compatibility, so you can turn off this function to solve this problem;
3. If the option of this function is grayed out and can’t be turned on or off, it means that a media is playing, so the playback state of the background media needs to be turned off, such as pause music player.
Note:
1. This function is not suitable for all phones and Bluetooth devices, please refer to the actual combination;
2. If there is software occupying the audio decoder in the background, this option will not be able to turn on or off. If you don't know which software is occupying it, you can clear all background software or restart the phone.