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  2. Phone connector (audio) - Wikipedia

    en.wikipedia.org/wiki/Phone_connector_(audio)

    Phone connector (audio) Phone plug mated in a phone socket. The plug's grooved tip is held firmly by the socket's spring tip contact. When not mated, this spring instead connects to the flat switch contact for detecting a plug. A phone connector is a family of cylindrically -shaped electrical connectors primarily for analog audio signals.

  3. The best wireless headphones for 2024: Bluetooth options for ...

    www.engadget.com/best-headphones-wireless...

    The company’s latest is the M20xBT, a Bluetooth version of the A-T’s popular M20x wired cans. For just $79, you can expect a comfortable fit and up to 60 hours of battery life. Bluetooth ...

  4. Apple headphones - Wikipedia

    en.wikipedia.org/wiki/Apple_headphones

    The iPhone Stereo Headset was introduced in 2007 and was bundled with the original iPhone and iPhone 3G, and featured a control capsule in-line with the left earbud's wire with a microphone and a single button, actuated by squeezing the unit, which can be programmed to control calls, presentations, music and video playback, launch Siri, or take pictures with the Camera application.

  5. How-To: Wiring VoIP to your phone jacks - Engadget

    www.engadget.com/2006-06-20-how-to-wiring-voip...

    To attach them, just insert the unstripped wires and squeeze down the circle with a pair of pliers. The wiring is completed. The first line is disconnected, and the remaining leads are now spliced ...

  6. Field telephone - Wikipedia

    en.wikipedia.org/wiki/Field_telephone

    Field telephones are telephones used for military communications. They can draw power from their own battery, from a telephone exchange (via a central battery known as CB), or from an external power source. Some need no battery, being sound-powered telephones . Telephone linesmen ford Lunga River during the Guadalcanal Campaign of World War II.

  7. How-to: Make your own 1920's style bluetooth handset - Engadget

    www.engadget.com/2005-06-07-how-to-make-your-own...

    5. Connect the mic and speaker to the wires on the headset. 6. Test it out. 7. Making room for the clock in is a bit of a pain in the ass. The original position of the large weight is in the way ...

  8. The best bluetooth headsets - Engadget

    www.engadget.com/2017-02-17-the-best-bluetooth...

    The Plantronics Voyager 5200 bested the Edge in Bluetooth range, but the Edge's range is more than sufficient for most people. The Edge also has simple pairing, easy-to-use controls, and a ...

  9. Cassette tape adapter - Wikipedia

    en.wikipedia.org/wiki/Cassette_tape_adapter

    The cord is connected to the device's output (or headphones) port and the electrical signal is converted into a magnetic signal by the head. This magnetic signal is then received by the tape deck's reading head, converted back into an electrical signal, and amplified by the sound system. Because most cassette adapters use a single-sided head ...