A free app for Android, by Fairy Duster.

Volume Bass Booster: Equalizer is an amazing audio app for Android phones and tablets. It helps you to get a better sound by adjusting the audio level and by using different presets. Use your headphones to optimize your listening experience and get better results.

The app offers five bands that allows you to easily adjust sound effect levels. It also features edge lighting that moves according to the audio’s rhythm, giving you a visualization of your sound or music.

Volume Bass Booster: Equalizer works well with most music and video players.