For those looking for a simple, cool sleep solution • Can cool or warm as low as 60°F and as high as 115°F. • Cool mesh mattress topper with circulating water • On-device controls for simple temperature changes • Easy to set up and 100% machine washable & dryable • Sounds like a small fan Pad is BRAND NEW NEVER BEEN USED. In excellent condition-) Ladies - if you are a warm sleeper and wake at night from night sweats , chilipad changed my life !