Equalizer (eq) Bass Booster (bass) and volume booster (volume) can improve the sound quality of your android phone，making your music sound more fun. It is a music equalizer, video equalizer, you can use it for any media player (music player, video player, etc.) , the equalizer can also change the original sound quality. Equalizer (eq) Bass Booster (bass) and volume booster (volume) different from others. For better scenarios,there are 6 volume modes for you to choose, such as normal mode, mus