Music Equalizer -Sound booster

Music Equalizer - Sound booster is Simple, small, free app to boost your speaker or headphone sound volume. Music Equalizer - Sound booster useful for movies, audio books and music. Playing audio at high volumes, especially for a prolonged amount of time, can destroy speakers and/or damage hearing. When you set the boost to zero, Speaker Boost will be off. The notification icon is just for ease of launching. If you don't like seeing the notification icon when Speaker Boost is off, just go to Speaker Boost's Settings and set it to appear only when Speaker Boost is running.

By installing this application you agree that you will not hold its developer responsible for any damage to hardware or hearing, and you are using it AT YOUR OWN RISK. Consider this to be EXPERIMENTAL software.

Music Equalizer - Sound booster is NOT for adjusting the speakerphone volume in phone calls (that has its own boost, I think), but for adjusting the volume of music, movies and apps.