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The head mount freed the switchboard operator's hands, so that he could easily connect the wires of the telephone callers and receivers. [10] The head-mounted telephone receiver in the singular form was called a "headphone". [11] [12] These head-mounted phone receivers, unlike modern headphones, only had one earpiece. [13]
USB On-The-Go ( USB OTG or just OTG) is a specification first used in late 2001 that allows USB devices, such as tablets or smartphones, to also act as a host, allowing other USB devices, such as USB flash drives, digital cameras, mouse or keyboards, to be attached to them. Use of USB OTG allows devices to switch back and forth between the ...
The USB standard included power supply to peripheral devices; modern versions of the standard extend the power delivery limits for battery charging and devices requiring up to 240 watts. USB has been selected as the standard charging format for many mobile phones, reducing the proliferation of proprietary chargers.
The S23 supports USB-C wired charging at up to 25W using USB Power Delivery, while the S23+ and S23 Ultra offer faster 45W charging. All three models feature Qi inductive charging up to 15W and Wireless PowerShare, which enables the phones to charge other Qi-compatible devices from their own batteries at up to 4.5W.
A handset is a component of a telephone that a user holds to the ear and mouth to receive audio through the receiver and speak to the remote party using the built-in transmitter. In earlier telephones, the transmitter was mounted directly on the telephone itself, which was attached to a wall at a convenient height or placed on a desk or table. Until the advent of the cordless telephone, the ...
Explore the history and features of Sony Ericsson products, from mobile phones to accessories, on this comprehensive Wikipedia list.
Model 302 telephone. The model 302 telephone is a desk set telephone that was manufactured in the United States by Western Electric from 1937 until 1955, and by Northern Electric in Canada until the late 1950s, until well after the introduction of the 500-type telephone in 1949. The sets were routinely refurbished into the 1960s.
Base transceiver station A base transceiver station ( BTS) or a baseband unit [1] (BBU) is a piece of equipment that facilitates wireless communication between user equipment (UE) and a network. UEs are devices like mobile phones (handsets), WLL phones, computers with wireless Internet connectivity, or antennas mounted on buildings or telecommunication towers. The network can be that of any of ...
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