Feature: 1. Ten relaxation sounds: white noise, pink noise, emotional soothing music, soothing music, waves, birdsong, thunderstorms, bonfires, running water, summer night insects 2. An auto-timer Limiting the sound playing time to 15,30 or 60 minutes 3. A volume control knob ,Adjusting the volume of the sound 4. Compact and lightweight for traveling 5.Anti-jamming 3.5mm headphone jack 6.Cold and warm night light 7. For better sleeping .Increased focus And Stress relief