Features : -Consistent soothing sound to comfort and promote more restful sleep cycles for baby -Masks disruptive noise, so you don’t have to worry about waking baby! -Three sound options for sleep and to mask noise : bright white noise, deep white noise or gentle surf -Rechargeable battery USB -Easy to use and operate with one hand -Included a flexible clip to hang it anywhere -Amber led nightlight provides just enough light to see by without causing wakefulness -Control lock feature keeps little fingers from changing settings -Easily adjust volume to suit your surroundings