Simple, small, free app to boost & mute & decrease & control your video or audio sound volume. Useful for movies, audio books and music.

KEY FEATURES:
• Automatically detect all Video and Music files on your iPhone, iPod Touch and iPad
• Support alls popular video and audio format
• Support boost volume up to 10 times
• Support mute volume for videos
• Support decrease volume for videos and audios
• Share fun videos & audios with your friends
• Lots of configurations and preferences