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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. Zello - Wikipedia

   en.wikipedia.org/wiki/Zello

   Purpose-built to connect frontline teams and communities, the push-to-talk walkie-talkie app offers instant voice communication with one or many in unlimited secure, private channels, as well as message replay, emergency alerts, location tracking, dispatch capabilities, and Bluetooth device support.

5. Project 25 - Wikipedia

   en.wikipedia.org/wiki/Project_25

   Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]

6. PoC radio - Wikipedia

   en.wikipedia.org/wiki/PoC_radio

   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]

7. Personal radio service - Wikipedia

   en.wikipedia.org/wiki/Personal_radio_service

   Italian 43 MHz "VHF CB" or "43 MHz CB" allocation. 24 channels, FM mode, 12.5 kHz channel spacing. Each channel has a "recommended use" associated with it. Portable handheld (walkie-talkie), in-vehicle mobile and base station transceivers are available for this band.

8. Realistic (brand) - Wikipedia

   en.wikipedia.org/wiki/Realistic_(brand)

   Realistic was a private label consumer electronics brand produced by RadioShack.Initially only a home audio equipment brand, its product line expanded to include CB radios, walkie-talkies, and video camcorders by the 1980s.

9. PMR446 - Wikipedia

   en.wikipedia.org/wiki/PMR446

   Motorola TA288 PMR446 licence-free radio Motorola TLKR T40 radio tuned to PMR channel 1. PMR446 (Private Mobile Radio, 446 MHz) is a licence-exempt service or UHF CB in the UHF radio frequency band, as personal radio service or citizens band radio, and is available for business and personal use in most countries throughout the European Union, [1] Malaysia, [2] and Singapore.