app to boost your headphone and speaker sound volume. Useful for music, cinema, audiobooks, and games. It works for your headphone and external speaker. Main point ☆ Small, simple, clean interface ☆ Max volume supporter, boost volume up to 200 ☆ Effectively boost sound for all media similar as music, videotape, and game ☆ spare volume supporter for headphones & external speaker & Bluetooth ☆ Run in the background ☆ announcement control ☆ Floating window control on other app ☆ No root demanded Disclaimer Use at your own trouble. Playing audio at high volumes, especially for a dragged quantum of time, can destroy speakers and/ or damage hail. Volume outdoors over make be destroy your speakers and earphones. By installing this operation you agree that you won't hold its inventor responsible for any damage to hail or attack, and you're using it at your own trouble. This App doesn't support all bias, you can try it and see if yours plant, but at your own trouble.