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.
Long Distance Walkie Talkie
Always-on 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 was noted for combining long distance walkie talkie capability with its cellphone service (see Nextel