Marpac DOHM-DS Dual Speed Sound Conditioner ( Black ), Certified Refurbished

The Original Sound Conditioner first introduced in 1962; now in its 4th generation design. The Dohm-DS Dual-Speed All-Natural White Noise Sound Machine is so effective, it was named "Official Sound Conditioner" of the National Sleep Foundation. Instead of a digital (electronic) recording, it has a built-in fan that creates the sound of rushing air. The Dohm-DS consists of a compact adjustable acoustic housing surrounding a two-speed electric motor with a unique asymmetrical fan. This design allows it to create the soothing sound of rushing air, the Marpac Signature Sound, without the disturbance of actual moving air. This all-natural "white noise" sound has been proven to effectively block noises at a broad range of frequencies, so you can get deep, undisturbed sleep all night long.

Features Dohm-DS – the Official Sound Conditioner of the National Sleep Foundation Two speeds – dual speed motor, unique asymmetrical fan, and acoustic housing create the soothing sound of rushing air, the Marpac Signature Sound, without the disturbance of actual moving air Customized sound – acoustic housing and dual speed fan allow for fully adjustable tone and volume control for a personalized sound environment Voltage – 120 V, for domestic use only >