4.7 x 4.7 x 3.3 inches ; 12.8 ounces

Provides ten fan sounds, ten white, pink and brown noise variations, and two varieties of ocean sounds — calm, and surf.
Helps block disruptive environmental noises so you can fall asleep with ease
Safe, solid-state design is powered by AC or USB and dynamically creates unique, non-repeating sounds with no moving parts