The Yogasleep Dohm Elite is a fan-based, white-noise sound machine that masks background noises and tinnitus. Its two speeds adjust the tone and volume. Combining these with its natural and soothing sounds makes for a better night's sleep. The sleep-inducing magic of a Yogasleep sound machine makes falling asleep as easy as pushing a button. The Dohm is the original sound machine first invented by Yogasleep in 1962 and beloved by generations since - The new Dohm Elite is showcasing an additional color and design upgrade. The Dohm Elite features Yogasleep's signature fan-based, natural white-noise with two speed options for widely adjustable tone and volume. Just flip the switch to high or low, rotate the cap and collar to find the best sound for you. Features: Natural and soothing sounds Conceals background noises High or Low speed selections New updated design Dimensions: 7.5" X 7.5" X 4.0" Feature Details Brand Yogasleep Mfg part # 3500510 UPC 036005305109 Color Grey / Silver Weight (lbs) 2.03 Battery operated? No Country of Manufacture United States Travel / Portable No Alarm Clock No Radio No Bluetooth No Smartphone Compatibility iOS Android No No Sound Source Fan # of sounds 1 Run Time(s) Continuous 30 min 60 min 90 min Yes No No No