Over 35 years ago the original Sound Screen / Sleep Mate sound conditioner white noise machine was developed because the inventor was having trouble sleeping. It worked so well, he made it available to his friends and family and ultimately the world. Today, the Sound Screen is still the most economical, most popular white noise machine and sound conditioner on the market. This white noise machine and sound conditioner creates a consistent, smooth sound of rushing air. The tone and volume of the sound are controlled by simply rotating the "cap" and "collar" of the housing. This "white noise" sound effectively masks unwanted noises and creates a sense of calm, making it easier to concentrate, relax and/or sleep. Don't confuse this with the 580 model, which only has one speed. This is the 980-A dual-speed model,and we have the latest version recently introduced!

Marpac combines American ingenuity and craftsmanship to create a lightweight, yet durable appliance capable of many years of reliable service. These sound conditioners create a consistent, smooth sound of rushing air.

The tone and volume of the sound are controlled by simply rotating the "cap" and "collar" of the housing. This "white noise" sound effectively masks unwanted noises and creates a sense of calm, making it easier to concentrate, relax and/or sleep.

These sound conditioners are recommended for restless sleepers, shift workers, infants, children, students, apartment dwellers, office workers (for confidentiality) and many others.

Electro-Mechanical Durability. Excellent Sound Quality. Dual Speeds - don't confuse with the 580 model. This is the 980 Dual-Speed model! Patented Housing Design. Lightweight. Economical. One Year Limited Warranty. Made in the U.S.A.

Size: 5 3/4" base diameter: 3 1/4" high. 110v AC.