Simple, small, free app to boost your speaker or headphone sound volume. Simple, small, free app to boost your speaker or headphone sound volume. Useful for movies, audio books and music. It is a powerful Music Player with a magical 3D surround sound, powerful Bass and an advanced Equaliser. Playing audio at high volumes, especially … Continue reading How to Activate 3D Equalizer Mobile Speaker Sound | Free Fire, PUBG, BGMI Music Effects 2022