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In 1957 Leonid Kupriyanovich presented a micro walkie-talkie radio version the size of a matchbox, 50g in weight and had 2 km operating distance. Also in 1957 he made an experimental model of a wearable automatic radio landline extender ("radiophone"), called LK-1 (not to be confused with the cancelled Soviet spacecraft of the same name or LK-1 ...
The Nokia 3000 series are mostly mid-range phones targeted towards the youth market. Many of these models included visually attractive designs to appeal to the younger demographic, unlike the 6000-series which were more conservatively styled to appeal to business users, and the 7000-series which targeted the fashion-conscious.
Naval air traffic controller communicates with aircraft over a two-way radio headset A variety of portable handheld two-way radios for private use. A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver ...
PowerSource phones used the Sprint network for interconnect (regular voice phone calls) and the Nextel network for walkie-talkie calls. They did this through the implementation of two radios in each unit—a 1900 MHz CDMA radio for Sprint and an 800 MHz iDEN radio for Nextel.
The walkie talkie inserted into a vehicular charger or converter while the user is in the vehicle. The charger or converter (1) connects the walkie talkie to the vehicle's two-way radio antenna, (2) connects an amplified speaker, (3) connects a mobile microphone, and (4) charges the walkie talkie's battery.
Easyfone Prime-A1 Pro 4G Easy-to-Use Flip Cell Phone, 2.4'' HD Display, Big Buttons, Clear Sound, Large Fonts, SOS Button, SIM Card Included, Dumbphone with 1500mAh Battery and a Charging Dock (Black)
Nokia C1000 [citation needed] is a Chinese-specific mobile phone, for the lower part of the market and includes Ovi Life Tools. It runs on Series 30, and can play music through its MP3 player. Nokia C1010 [citation needed] is a China-only mobile phone, offering dual-SIM ability and Easy Swap. It is made for emerging cities and provinces, where ...
A PoC radio (short for push to talk over cellular radio [2]), also known as PTToC radio, [3] is an instant communication device that is based on the cellular network. [4] It is a radio device that incorporates push-to-talk technology into a cellular radio handset. [5]
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