This unit offers 7 soothing nature sounds (Chirping Birds/Ocean/Summer Night/Waterfall/Thunderstorm/Campfire/Heartbeat) & White Noise that create a calm, peaceful relaxing atmosphere. All the sounds can be adjusted to fit the mood using the separate tone control. It also includes a night light w/3 brightness settings that’s perfect for providing a little extra warm ambient light in the room. Also featured is an easy-to-read 1″ white LED display w/3 dimmer settings, a digital FM radio & easy access top mounted controls. The alarm clock includes dual alarms w/wake to alarm, radio or one of the available soothing sounds. It operates on 120V AC power & includes a battery back-up feature for saving the settings if the power goes out (1 CR2032 Lithium battery not included).