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  2. Lanyard - Wikipedia

    en.wikipedia.org/wiki/Lanyard

    Such lanyards are often made of braided or woven fabric or split with a clip attached to the end. A plastic pouch or badge holder with at least one clear side is attached to the lanyard with the person's name badge or ID card. Occasionally, small items like business cards, pens or tools can be placed behind the badge for easy access.

  3. Boatswain's call - Wikipedia

    en.wikipedia.org/wiki/Boatswain's_call

    A boatswain's call, pipe, or bosun's whistle is a pipe or a non-diaphragm type whistle used on naval ships by a boatswain. The pipe consists of a narrow tube (the gun) which directs air over a metal sphere (the buoy) with a hole in the top. The player opens and closes the hand over the hole to change the pitch.

  4. J Hudson & Co - Wikipedia

    en.wikipedia.org/wiki/J_Hudson_&_Co

    Their Tornado 2000 whistle is capable of easily reaching 122 decibels. J Hudson & Co was founded in the 1870s in Birmingham by Joseph Hudson (1848–1930) and his brother James Hudson (1850–1889). The company became a manufacturer of whistles and continues as Acme Whistles. Acme is the world's largest and most famous producer of whistles.

  5. Baton (law enforcement) - Wikipedia

    en.wikipedia.org/wiki/Baton_(law_enforcement)

    Since early law enforcement professionals were very reliant on their batons there was a popular movement to outfit police batons with implements like whistles, torches/flashlights and tear gas. At least four models were built with weapon-retention devices that would deploy "sharp spikes or blades" in case a suspect tried to grab an officer's baton.

  6. Face ID - Wikipedia

    en.wikipedia.org/wiki/Face_ID

    Face ID is a biometric authentication facial recognition system designed and developed by Apple Inc. for the iPhone and iPad Pro.The system can be used for unlocking a device, [1] making payments, accessing sensitive data, providing detailed facial expression tracking for Animoji, as well as six degrees of freedom (6DOF) head-tracking, eye-tracking, and other features.

  7. Nathan Manufacturing - Wikipedia

    en.wikipedia.org/wiki/Nathan_Manufacturing

    The Holden Co. Ltd. was the Canadian Distributor of Airchime Mfg. Co's locomotive air horns and steam whistles and did not manufacture any horns or whistles, a very common misconception. Captain Charles Benter , who followed John Philip Sousa as Marine Corps Band conductor, played a role in developing what is called "the most melodic horn in ...