You can increase the volume level as per your need by using a low to high sound.

With this app you can boost Bluetooth Volume Sound Booster, you can increase speaker, music volume and adjust the headphone loudness of your mobile phone, much more than its original limit. This audio booster app is a simple sound amplifier and music player booster that makes your bluetooth extra louder.

Redefine the way you play music. This is Equalizer – Volume Booster, and it is the only EQ presents app you’ll ever need. Turn on full bass, pump out the music, and feel it deep in the soul like never before.

Best Bass Booster and Equalizer App for your i- The the way you listen to music with Bass booster, a customizable 16-band equalizer & handcrafted presets. You can also experience the magic of 3D surround sound and feel your tunes come to life on any headphones.