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Motorola Car Telephone Model TLD-1100, 1964. AEG 4015C telephone for the German B network c. 1979. A car phone is a mobile radio telephone specifically designed for and fitted into an automobile. This service originated with the Bell System and was first used in St. Louis, Missouri, United States, on June 17, 1946.
Chargers and external batteries. Micro-B USB plug. Mobile phone chargers have gone through a diverse evolution that has included cradles, plug-in cords and obscure connectors. However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C. Apple devices often use proprietary connectors.
Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...
Yondr's core product is the Yondr Pouch, a device in which a person's cell phone may remain in their possession but unusable within a designated area (such as a school, performance venue, meeting room, etc.) and (in the case of schools and students) until students leave their school, passing the magnets prepared at school exits.
A magnetic switchable device (often called a magnetic base) is a magnetic fixture that uses one or more permanent magnets in a configuration that allows the external field to be turned on or off. They are used in many applications including optics, metalworking, lifting, and robotics, to attach items to metal surfaces in a secure but temporary ...