SOUND+SLEEP MINI is a sleep therapy system that helps you sleep better. It offers 12 unique categories of natural sounds with 48 non-looping sounds engineered to promote deeper sleep and relaxation. Some of the Sound Stories include Ocean, Rain, Brook, Fireplace, Meadow, and Waterfalls. The MINI also includes 4 fan sounds & 12 white/pink/brown noises. The MINI is able to run from AC, USB, or battery power. The product is small and light so makes for the perfect travel companion. Also with the line input jack the MINI can play music or audio from your laptop, tablet, smartphone, or MP3 player. Sleep Better. No Prescription Necessary. The SOUND+SLEEP MINI redefines the science of sleep. Patented Adaptive Sound technology has the ability to continuously and automatically “listen” to your background for unwanted and disruptive ambient noise. in less than a tenth of a second, the MINI responds to intrusive noises by remixing sound profiles and adjusting volume to neutralize outside sounds.