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  2. Back-up beeper - Wikipedia

    en.wikipedia.org/wiki/Back-up_beeper

    A back up beeper warns of a garbage truck backing up as it works its way around a cul-de-sac. A white-noise back-up beeper provides a less disruptive alert than the original pure-tone alert. A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse.

  3. 8 white noise machines for better sleep - AOL

    www.aol.com/news/8-white-noise-machines-better...

    HoMedic’s alarm clock offers eight relaxation and nature sounds— including a white, pink, gray and brown noise option. The “sleep therapy” options play your favorite nature sound for 15 or ...

  4. Sony Dream Machine - Wikipedia

    en.wikipedia.org/wiki/Sony_Dream_Machine

    A clock radio with three green dimmable backlit displays, one main display and two separate alarm displays. It has a white plastic body and silver blue faceplate, a PLL synthesized AM/FM tuner with five preset buttons, two alarms with either radio, beeper, or two selectable melodies as wake up chimes, and a nap button. It has no battery backup.

  5. White noise machine - Wikipedia

    en.wikipedia.org/wiki/White_noise_machine

    A white noise machine is a device that produces a noise that calms the listener [citation needed], which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off at ...

  6. White, brown and pink noise machines are going viral for ...

    www.aol.com/news/white-brown-pink-noise-machines...

    Brown noise, also called red noise, is more intense at lower frequencies, which produces a deep, rumbling sound, says Harris — think more bass and less static than white noise.

  7. How to fight noise with white noise for a better night's ...

    www.aol.com/fight-noise-white-noise-better...

    Sometimes the only way to combat noise is with more noise. "White noise," "brown noise" and "pink noise" can help you mask unwelcome sounds