Don’t get caught in direct sunlight with your screen brightness all the way down. With ShakeBrite, simply shake your phone to temporarily reach full brightness.This lets you save your battery by leaving your screen on full dim most of the time, and use full brightness only when you really need it. ShakeBrite runs in the background, but is optimized to use very little battery power on its own.Note: ShakeBrite does not work with all phones when power saving features or auto brightness is activated. We are working to achieve 100% compatibility with all phones.