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2. Two-way radio - Wikipedia

   en.wikipedia.org/wiki/Two-way_radio

   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 ...

3. Walkie-talkie - Wikipedia

   en.wikipedia.org/wiki/Walkie-talkie

   Typical walkie-talkies resemble a telephone handset, with a speaker built into one end and a microphone in the other (in some devices the speaker also is used as the microphone) and an antenna mounted on the top of the unit. They are held up to the face to talk. A walkie-talkie is a half-duplex communication device. Multiple walkie-talkies use ...

4. Our Favorite Walkie Talkies From the Trails to the Worksite - AOL

   www.aol.com/favorite-walkie-talkies-trails...

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5. Intercom - Wikipedia

   en.wikipedia.org/wiki/Intercom

   A butler uses an intercom on behalf of a lady. An intercom, also called an intercommunication device, intercommunicator, or interphone, is a stand-alone voice communications system for use within a building, small collection of buildings or portably within a small coverage area, which functions independently of the public telephone network. [1]

6. Personal radio service - Wikipedia

   en.wikipedia.org/wiki/Personal_radio_service

   Since 3 February 2004, the Infocomm Media Development Authority of Singapore (IMDA) has allocated the 446.0–446.1 MHz frequency band for low-powered walkie-talkies on a non-interference, non-protected and shared-use basis.

7. Supply chain mystery surrounds how Hezbollah’s pagers and ...

   www.aol.com/finance/supply-chain-mystery...

   How exactly the walkie-talkies were compromised is also a mystery at this point. Visual evidence suggests the devices were two-way ham radios sold by the Japanese company Icom, a leading manufacturer.