1. Win+r, enter regedit, open the registry
2. Copy the path below to here
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Bluetooth\Audio\AVRCP\CT
then hit enter
Modify this variable to 1, the default is 0
Some users found that there is no such variable
DisableAbsoluteVolume
Right-click on the blank area to create a new -> DWORD32
then set to 1
Disconnect the bluetooth link afterwards
Shut down the computer and start the computer (don't restart the fast startup setting, it will not work well)
Re-connect the Xiaoai speaker with the computer and enjoy the wonderful music.