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  2. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

    www.aol.com/entertainment/20-off-raycon-earbuds...

    These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

  3. 5 cheap iPhone camera tricks that will take your shots ... - AOL

    www.aol.com/news/2015-07-21-5-cheap-iphone...

    4) Shoot towards the sun. Yes, you might have heard not to do that, but it can actually create some really nice results. It works best when the sun ray is diverted by an object, like the clouds or ...

  4. iPhone X - Wikipedia

    en.wikipedia.org/wiki/IPhone_X

    The iPhone X ( Roman numeral "X" pronounced "ten" [13]) is a smartphone designed, developed and marketed by Apple. It is part of the 11th generation of the iPhone. Available for pre-order from October 27, 2017, it was released on November 3, 2017. The naming of the iPhone X (skipping the iPhone 9 and 9s) is to mark the 10th anniversary of the ...

  5. Linkwitz–Riley filter - Wikipedia

    en.wikipedia.org/wiki/Linkwitz–Riley_filter

    A Linkwitz–Riley ( L-R) filter is an infinite impulse response filter used in Linkwitz–Riley audio crossovers, named after its inventors Siegfried Linkwitz and Russ Riley. This filter type was originally described in Active Crossover Networks for Noncoincident Drivers in the Journal of the Audio Engineering Society.

  6. X-ray filter - Wikipedia

    en.wikipedia.org/wiki/X-ray_filter

    X-ray filter. An X-ray filter (or compensating filter) is a device placed in front of an X-ray source in order to reduce the intensity of particular wavelengths from its spectrum and selectively alter the distribution of X-ray wavelengths within a given beam before reaching the image receptor. [1] Adding a filtration device to certain x-ray ...

  7. The best Lighting Deals to shop this Black Friday - AOL

    www.aol.com/live-updates-best-lighting-deals...

    Best Black Friday Lightning Deals for kitchen. 22% off the Val Cucina Infrared Heating Air Fryer Toaster Oven. 20% off the LoafNest Incredibly Easy Artisan Bread Kit. 23% off the Coffee Gator ...

  8. Infrared cut-off filter - Wikipedia

    en.wikipedia.org/wiki/Infrared_cut-off_filter

    Infrared Color Photography Mahatma Gandhi. Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near- infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.

  9. RF and microwave filter - Wikipedia

    en.wikipedia.org/wiki/RF_and_microwave_filter

    RF and microwave filter. Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges ( medium frequency to extremely high frequency ). This frequency range is the range used by most broadcast radio, television, wireless communication (cellphones ...