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  2. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    The HPA also says that due to the mobile phone's adaptive power ability, a DECT cordless phone's radiation could actually exceed the radiation of a mobile phone. The HPA explains that while the DECT cordless phone's radiation has an average output power of 10 mW, it is actually in the form of 100 bursts per second of 250 mW, a strength comparable to some mobile phones.

  3. Clamshell design - Wikipedia

    en.wikipedia.org/wiki/Clamshell_design

    The clamshell form factor is based on the hinged design of the clam.. The clamshell form factor is most closely associated with the cell phone market, as Motorola used to have a trademark on the term "flip phone", [1] but the term "flip phone" has become genericized to be used more frequently than "clamshell" in colloquial speech.

  4. Foldable smartphone - Wikipedia

    en.wikipedia.org/wiki/Foldable_smartphone

    A foldable smartphone (also known as a foldable phone or simply foldable) is a smartphone with a folding form factor. It is reminiscent of the clamshell (or "flip phone") design of many earlier feature phones. [1] [2] Some variants of the concept use multiple touchscreen panels on a hinge, while other designs utilise a flexible display.

  5. The 7 Best Flip Phones for Anybody Who Hates Smartphones - AOL

    www.aol.com/7-best-flip-phones-anybody-050000866...

    S22 Flip. The CAT is a “dumb” phone with some smart capabilities. Since this flip phone runs a version of Android and includes a physical numerical keypad (unlike smartphones), this CAT S22 is ...

  6. The best flip phones for seniors in 2025 - AOL

    www.aol.com/lifestyle/best-flip-phones-184204157...

    Smart features: Speaking of Motorola, if you want the folding, pocket-friendly design of a flip phone along with a full — and I do mean full — range of smartphone features, look to the modern ...

  7. Mobile-device testing - Wikipedia

    en.wikipedia.org/wiki/Mobile-device_testing

    Mobile-device testing functions to assure the quality of mobile devices, like mobile phones, PDAs, etc.It is conducted on both hardware and software, and from the view of different procedures, the testing comprises R&D testing, factory testing and certificate testing.

  8. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

  9. Two-tone testing - Wikipedia

    en.wikipedia.org/wiki/Two-tone_testing

    Two-tone testing is a means of testing electronic components and systems, particularly radio systems, for intermodulation distortion. It consists of simultaneously injecting two sinusoidal signals of different frequencies (tones) into the component or system.