Sound Amplifier-Volume Booster is an application that allows you to boost and enhance the volume and quality when you play your music or movies based on your preference. This application is the best for you if you are meticulous enough in playing you music, games, or just watching shows directly from your phone. With this application, you don't have to own pricey amplifiers. Moreover, Sound Amplifier-Volume Booster requires Knox Player for you to use the amplifier. When you are all set, you can now enjoy using this application anytime, anywhere.