A free program for Android, by Vintage Audio Tools.

You can use the built-in equalizer to boost the sound. It will also increase the volume of your speakers and headphones.

It has three different types of volume boosters, and each one has a different style and sound. You can choose the one you like the most.

The built-in equalizer can boost the sound of your speakers and headphones. It can also be used as an amplifier for your music and video files.

You can choose the volume of your speakers and headphones to be increased. The sound will be boosted by a certain percentage.

The app will work on most Android devices.

It will work on tablets and phones.

It is a free application.