A free app for Android, by TAMob.

Want to boost the volume of your Android device? Then Volume Booster is the right application for you. Increase the volume of your headphones, speaker, and external audio devices by up to 200% with this app. It comes with more than 10 powerful volume booster features, making it the most powerful app in its category.

This free android application can improve your music quality and amplify bass, whether you are listening to music, playing games, or watching movies. Volume Booster app is made with a user-friendly interface – no need to root your device. With its smooth control, you can quickly adjust your volume to 10%, 30%,60%, 80%, or more.