- Provides ten fan sounds, ten variations of white, pink, and brown noise, and two varieties of ocean sounds: calm and surf. - Helps mask disruptive environmental noises to facilitate sleep. - Safe, solid-state design powered by AC or USB that creates unique, non-repetitive sounds without moving parts. - Precise volume control, optional timer, and 3,5 mm jack for headphones or portable speakers. - Includes power adapters for Europe and USA. - Ideal for creating undisturbed work areas or reducing the distracting effects of exterior noises.