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  2. Amazon’s Portable Projector With 25,000 Reviews Is Marked ...

    www.aol.com/amazon-portable-projector-25-000...

    Watching your favorite movie on a big-screen TV is great, but most TV sets these days top out at 70 to 80 inches in size. If you want to cast the action on an even larger screen, you’ll want to ...

  3. Handheld projector - Wikipedia

    en.wikipedia.org/wiki/Handheld_projector

    Handheld projectors involve miniaturized hardware, and software that can project digital images onto a nearby viewing surface. The system comprises five main parts: the battery, the electronics, the laser or LED light sources, the combiner optic, and in some cases, scanning micromirror devices. First, the electronics system turns the image into ...

  4. The best portable projector I've ever used is down to a ... - AOL

    www.aol.com/lifestyle/best-portable-projector...

    However, unlike some mini projectors, this one lacks a battery. To operate it, you'll need AC power. Assuming you leave it plugged in after your initial setup, the Elfin resumes from standby mode ...

  5. Hanimex - Wikipedia

    en.wikipedia.org/wiki/Hanimex

    In August 1971 the company introduced the HC-1000. This was a portable battery operated cassette recorder featuring microphone compartment, carry handle and auxiliary input as well as mains adaptor. The machine was promoted throughout the UK during 1972 as a reduced price offer at petrol stations with 6 vouchers required to secure the offer.

  6. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

  7. List of CRT video projectors - Wikipedia

    en.wikipedia.org/wiki/List_of_CRT_video_projectors

    Two projectors mounted in a special pedestal allowing twice the brightness. One projector can converge on green. ... Portable color single tube projector. VPH-600 [39 ...

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