A free app for Android, by Vintage Audio Tools.

It lets you adjust the sound effect levels so that you get the best out of your audio player.

The application supports 5 bands, so you can adjust the sound effect levels to get the best sound.

This is very easy to use and is suitable for any audio player, such as Spotify, Deezer, Google Play Music, and more.

You can also create your own custom presets and save them for later use.

If you use the app on a daily basis, you can also save your own settings and get them back whenever you want.

The application allows you to set a global volume level, so you can control the audio output of the whole device.

Music Equalizer is a very useful and easy-to-use application.