The model 980A Marpac Sleepmate sound conditioner sound machine is a dual speed sound screen that helps eliminate the problem of loud neighbors, your spouse's snoring or other irritating noises keeping you awake at night. The Marpac 980 SleepMate Dual Speed Sound Screen Sound Machine employs the latest technology to create soothing, natural sounds that effectively mask out unwanted noise that may interfere with your ability to sleep, relax, meditate or concentrate on work or studies.The 980A Sleepmate 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.The 980A dual speed Sleepmate sound conditioners are recommended for restless sleepers, shift workers, infants, children, students, apartment dwellers, office workers and many others. We offer the dual speed 980A SleepMate, in a durable ABS plastic housing suitable for travel or use in the home or office.Features: Size: 5 3/4 base diameter: 3 1/4 high Weight: 1.6 pounds Material: ABS Plastic Color: Fog White Electro-Mechanical Durability Excellent Sound Quality Patented Housing Design Lightweight & Economical One Year Limited Warranty Made in the U.S.A. Power Cord: 8 feet long UL Listed-U.S. & Canada