enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    Headphones that use cables typically have either a 1 ⁄ 4 inch (6.4 mm) or 1 ⁄ 8 inch (3.2 mm) phone jack for plugging the headphones into the audio source. Some headphones are wireless, using Bluetooth connectivity to receive the audio signal by radio waves from source devices like cellphones and digital players. [5]

  3. Radio noise - Wikipedia

    en.wikipedia.org/wiki/Radio_noise

    Radio noise near in frequency to a received radio signal (in the receiver's passband) interferes (RFI) with the operation of the receiver's circuitry.The level of noise determines the maximum sensitivity and reception range of a radio receiver; if no noise were picked up with radio signals, even weak transmissions could be received at virtually any distance by making a radio receiver that had ...

  4. Electromagnetic interference - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_interference

    Wireless and radio frequency transmissions; Television and radio receivers; Industrial, scientific and medical equipment (ISM) Digital processing circuitry such as microcontrollers; Switched-mode power supplies (SMPS) Broadband noise may be spread across parts of either or both frequency ranges, with no particular frequency accentuated. Sources ...

  5. The best wireless headphones for seniors in 2025 - AOL

    www.aol.com/lifestyle/best-wireless-headphones...

    Active Noise Canceling (ANC): The hot headphone feature of the 21st century is active noise canceling, otherwise known as ANC. Flip a switch (or press a button) and the earpieces magically reduce ...

  6. Crystal detector - Wikipedia

    en.wikipedia.org/wiki/Crystal_detector

    In a crystal radio, the user would tune the radio to a strong local station if possible and then adjust the cat whisker until the station or radio noise (a static hissing noise) was heard in the radio's earphones. [25] This required some skill and a lot of patience. [6]

  7. Best noise-canceling headphones, according to Consumer Reports

    www.aol.com/news/best-noise-canceling-headphones...

    Sennheiser PXC 550-II $289.99 at Amazon. Sennheiser PXC 550-II $299.99 at Walmart. True Wireless Sony WF-1000XM4. The WF-1000XM4 is the latest in Sony’s line of noise-canceling true wireless ...

  8. List of discontinued Bose headphones - Wikipedia

    en.wikipedia.org/wiki/List_of_discontinued_Bose...

    The noise cancelling hardware and micro-USB supported rechargeable battery is contained with a box located near the headphone jack, similar to the QuietComfort 1. The earbuds are similar to the IE2 headphones. A button on the remote labelled "Aware Mode" reduces noise cancellation to let in ambient noise. These headphones are discontinued.

  9. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control or ANC.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.