A man using a walkie-talkie.
walkie-talkie definition by Webster's New World
walkie-talkie definition by American Heritage Dictionary
also walk·y-talk·ynoun pl. walk·ie-talk·ies also walk·y-talk·ies
walkie-talkie - Computer Definition
A portable handheld radio transmitter-receiver invented in 1938 by Al Gross while a high school student in Cleveland, Ohio (United States).The device caught the attention of the Office of Strategic Services (OSS), predecessor to the Central Intelligence Agency (CIA). The OSS recruited Goss, who then lead the effort to develop the walkie-talkie for clandestine and military uses. Code-named Joan/Eleanor, the first walkie talkie system comprised a ground unit, Joan, and an airborne unit, Eleanor. The system allowed OSS agents behind enemy lines to communicate with aircraft in a manner that virtually defied detection at the time. See also Gross, Al.
A handheld device that provides communications between two or more people using dedicated frequencies over short distances, typically less than a mile. There is no dial-up procedure; it is always on and is activated instantly by pressing a button and talking. This always-on instant communications is also provided by specialized mobile radio (SMR) services for police, taxis and other vehicles. Having acquired numerous SMR operators throughout the U.S., Nextel is noted for combining long distance walkie talkie capability with its cellphone service (see Nextel).