UNIQUE, STEADY, NON-LOOPING SOUND: Lectrofan sound is not just a recording. It has been developed through a proprietary algorithm that dynamically generates unique non-repeating sounds. This steady stream of sound eliminates the distracting looping that is common among many competing brands.CREATED FOR THE JETSETTER: The LectroFan international model features plug ins for the US, UK and EU. These plugs can be used with the LectroFan or any USB device.UNMATCHED PRODUCT FEATURES: Equipped with 10 white noise options, 10 fan sounds, and a multi-hour sleep timer, our sleep therapy machine comes loaded with options for every sound masking situation.MASK DISRUPTIVE NOISES: Block out those pesky neighbors, create a disturbance free study area, keep conversations private, fall asleep with ease, or block out the construction noises outside your window. LectroFan has a setting to mask these noises and more.SAFE, SIMPLE DESIGN: The LectroFan does not contain a motor or moving parts. This makes it a safe alternative to many other devices used to create white noise.