Walkie-talkie
hand-held two-way radio communication device / From Wikipedia, the free encyclopedia
A walkie-talkie is a hand held two way radio receiver/transmitter or transceiver. It was developed in the Second World War.
Radio engineer Alfred J. Gross worked on the early technology behind the walkie-talkie between 1934 and 1941. During the war it was developed by Donald L. Hings and engineering teams at Motorola led by Henryk Magnuski.[1][2]
Typical walkie-talkies today are phone sized and have a push-to-talk button. Walkie-talkies are used for various reasons, in the military, for amateur radio, and for personal use.