Features3 sound options: on, off or auto off after 30 minutes Special colour change light effect light.3 light/sound options: light only, sound only or light & sound 5 relaxing sounds brook, summer night, ocean, birds or dawn chorus Press on/off Our fantastic Soothing Sounds Mood Light Pyramid - Silver is designed to help you relax and wind down after a long day. Helps to relieve stress and combat the effects of tinnitus using the five built-in relaxing sounds (brook, summer night, sea, bird song and dawn).