Speaker Booster Plus is a handy utility for Android phones that can be used to amplify the sound coming from the device's built-in speaker. It allows you to set a specific volume level for all types of audio and video content. In addition, it includes a built-in equalizer that can be used to optimize the sound in different frequency channels.

This application was designed to be used as an audio amplifier for your smartphone or tablet.

To use it, simply open the app and set the desired volume level. You can then use the app to play your desired audio files and videos at the desired volume level.

If you want to use it to play a music file, simply open the app and select the desired music file.