Volume Booster Pro

Volume Booster Pro is simple and easy to use application, which Boost your media sound volume with 10 - 20 % more then maximum permited! The app uses special algorithm to adjust the built-in Android equalizer, thanks to what you get stronger and clearer sound.Volume Booster Pro provides direct access to Android Media Player in one click!
You can control Volume Boost from notification bar (Android 4.1+)
For maximum result please use a HeadSet or an external Speakers!