Marpac Dualspeed Sound Machine 980a

"The Original" sound conditioner first introduced in 1962; now in its fourth generation design, Smooth sound of rushing air, a mechanical "white noise" with two speed operation for a greater range of sound, Provides excellent noisemasking capabilities and a soft comfortable background sound where it might otherwise be too quiet, Perfect for Babys room, day care centers, college dorms, apartment living, or any sleep environment where unwanted, disturbing or intrusive noise is a problem, Made in the USA; UL listed; one year limited warranty