A free app for Android, by Coocent.

The Equalizer & Bass Booster app for Android helps you to adjust sound effect levels so that you get the best out of your audio or music player. It has a volume slider, a live music stereo-led VU meter, a five-band equalizer, a bass booster, and virtualizer effects.

You can adjust the sound effect levels so that you get the best out of your audio or music player. The app also lets you use your device’s built-in speaker, headphones, and Bluetooth for the best results. You can use the Equalizer & Bass Booster app to get the best sound from your Android device.