Help your guests fall asleep and stay asleep with the naturally soothing white noise of a Yogasleep Dohm sound machine. As the original sound machine introduced in 1962, Yogasleep uses fan-based white noise to create a comforting sleep environment that masks noises which might otherwise disturb sleep. The Zohne unit utilizes solid state technology to create white noise emulating 3 sounds: Rain, Waterfall, and Surf. Effectively masks unwanted sounds and noise. Full tone and volume control. Compact and lightweight yet offers the noise masking capabilities of many full-sized sound conditioners. UL/CUL listed, 1-year limited warranty. 5.6 inches W x 4.1 inches L x 2.25 inches H. 1.2 lbs. White. Approved for Canada