Oregon Scientific WL201 LED Wake Up & Mood L Alarm Clock Dawn alarm and Dusk simulations with colorful LED mood lights Sync your alarm with your sleep cycle through your smart phone for the best time to wake-up, complementary app displays total sleep time, average sleep time, sleep statics 6 built-in nature sounds which include Riverside Morning, gentle rain, Deep water, Sunset sonata, private beach and Hidden forest Fm radio, digital clock, alarm uses nature sounds or FM radio Audio line-in option so you can plug in an external music device like Ipod/Iphone, powered by AC/DC adaptor included