Sound Sleeper Portable White Noise and Night LightBuilt in rechargeable battery Portable white noise with 26 different sounds Multi coloured light including red light Only device to offer dimmable red light, as well as all other colours Button Lock feature, ensuring no accidental buttons pressed while stored in your bag (or by sneaky little fingers) Up to 30h usage time All sounds loop continuously until stopped, or are turned off by the auto timer function. Audio Button White noise type 1 Brown