A free app for Android, by Photo Gallery Tools.
If you want to listen to music or watch a video on your Android phone or tablet, you need to make sure that the sound is coming out of the device’s speakers or headphones at a high enough volume. If you have a smartphone, tablet, or a laptop, you can push the volume up higher with this app.
It’s a simple and useful application that will make the sound of your device much louder. It’s useful for music and video players, as well as for games and for those who want to boost their music and video players.
If you are using the Android operating system on your device, you can download this application from the Google Play store.