Didn't you fall asleep while listening to music or watching a video in bed? I can't sleep well and my battery is running out, so I get annoyed from the morning. Now, listen comfortably and enjoy comfortably. You can stop playback at any time by gently shaking your smartphone or setting the timer while using the Music, Video, Media player. • Features Shake - Shake when you're sleepy to stop the player playing Music, Video, Media, etc. Controller Mode - Using controller mode, shake to toggle pla