Volume Booster Max Pro v1.3.5

Pro version without ads
If your device has low sound, use Volume Booster and Sound Amplifier to make your device super loud.
The Volume booster - Audio Amplifier application amplify the volume on your device has increased to 200%.
Listening music, playing game or watching movie, the volume booster max and sound amplifier can make sound louder than the system default.
With music equalizer and bass booster , it is able to improve your music quality and amplify bass and boost volume of your phone and tablet louder.
Volume Booster - Loud Speaker with Extra Sound has a simple interface to ensure that you can quickly master it in an instant.
Paid version
System Requirements:
Requirements: Android 5.0+
Home Page-

https://play.google.com/store/apps/details?id=volumebooster.volume.booster.pro&hl=en