Bluetooth Volume Manager can react to Bluetooth devices connecting or disconnecting. It allows Android to remember the volume levels of different Bluetooth devices.


Available features:

Music, call, ringtone and notification volume adjustment.
Sending out ’Play’ or ’Next’ media commands.
Opening a specific app.
Keeping the screen awake.
Preventing the volume from being changed.
Restoring previous volume levels after disconnect.
This app can’t "boost" your volume or change the volume if you can