SUNLIGHT SIMULATION: Fall asleep naturally and wake up gently with simulated sunlight and the color of either a sunrise or sunset (2000 lux). The WL75 has 6 wake-up and 4 fall-asleep melodies BLUETOOTH: Bluetooth connectivity with the free ‘beurer LightUp' app - allowing you to control your device & its settings from your smartphone & also allows you to connect your phone to play music MOOD LIGHT: The WL75 provides a colored sunrise and sunset simulation & a color change function and the option of setting individual colors. Choose from 256 customized color variations or 10 presets! MUSIC PLAYER: Designed with a high-quality speaker, so you can listen to your favorite music on demand via aux (cable incl.) The WL75 also allows you to charge your phone via USB ALARM: 2 adjustable alarm times and snooze function (1-30 minutes). Choose to wake up to your favorite radio station or 6 different wake-up melodies and fall asleep to 4 different fall-asleep melodies Product Dimensions : 8.9 x 7.3 x 3.7 inches; 2 Pounds Download this product's instruction manual here