White noise can be used to block or reduce distractions. It is especially useful for masking high-pitched noises (like children playing/laughing). White noise can also be used as a sound curtain to aid in preventing eavesdropping on private conversations. True-random white noise can also be utilized for some computer applications such as cryptography, or even for paranormal research. Why choose analog? High quality white noise is supposed to consist of rapid "true-random" impulses. It is the very nature of this "randomness" that produces that distinct white noise sound - just like the random spattering of rain drops. White noise that does NOT consist of true-random impulses is called pseudo-random noise. It sounds "white" because the individual impulses only seem to pop forth randomly. What is really going on is that this seemingly random train of impulses is just a predetermined sequence of bits that will eventually repeat itself (not such a desirable thing). It is just a simulation of true-random noise created by mathematical algorithms - a product of digital technology. It is not possible to generate true-random white noise by digital means, e.g., computer software or digital electronic circuitry. Only an analog source can provide true-random white noise. The problem is that almost all other white noise generators or electronic sound conditioners found on the market are pseudo-random digital devices. We are one of the few manufacturers left in the world that still produce analog noise generators. Please Note: This device must be patched to an audio amplification system such as a home stereo system (RCA cables included) or a set of amplified speakers (such as a pair of computer speakers) to produce a white noise sound. But don't worry, hook-up is a snap. Please note that the AC Wall Adapter may vary in shape and size. Be sure to check out our other products (we also offer pink and brown noise products).

Purchase includes RCA cables (for hook-up to external audio equipment) AC adapter, and Owner’s Manual. Comes with a 30 day money-back guarantee and a two year warranty. Enclosure is made from rugged high-impact ABS plastic. Product is RoHS Compliant and is constructed with lead-free components and lead-free solder. Contains a special sophisticated filter that removes all frequencies beyond the range of human hearing (see picture gallery for spectrum analysis). This eliminates unnecessary loading that may otherwise be imposed on your audio system (unfiltered white noise can be hard on sound systems / tweeters). The white noise signal generated by this device is mathematically perfect (characterized by a 3dB increase in energy per octave) and consists of true random impulses unlike the more common pseudo-random digital noise generators which create an algorithmic sequence of bits that eventually repeats. Provides good clean white noise sound through your stereo system or computer speakers, which is a far better alternative than listening to white noise from a "tinny" little speaker found in sound conditioners.