Extra Volume Booster , a max volume booster for android with music equalizer and bass booster FREE is able to boost volume of your phone and tablet louder, improve your music quality and amplify bass.

Features:
☆ Music equalizer with different sound level and frequency
☆ Volume booster pro for headphones & external speaker & bluetooth
☆ Stereo surround sound effects
☆ 3D Virtualizer effect
☆ Beautiful and simple interface
☆ User-friendly operation
☆ No root required

Useful for vedio, audio books, music and games
1. Music equalizer
📣Turn on the Music player and play your music or audio books
📣Open the Bass Booster app and adjust sound level and frequency as you like.
📣Open the Volume Booster to boost volume of speaker

2. Effect for video, game and so on
📣Open the Bass Booster app and adjust sound level and frequency as you like.
📣Let it run in the background
📣Open the Video player to play your video or enjoy your game