Free download Volume Booster - Equalizer EQ APK for Android, PC. Latest version is 1.4.8, update at June 13, 2017
Volume Booster - Equalizer EQ version 1.4.8 is only one variant.
Making phone increase volume up to 40%, along with improving the quality of phone speaker by audio enhancement software diffusing sound, that interesting ’Boost volume' - extra volume sound speaker...