Police radio is a radio system used by police and other law enforcement agencies to communicate with one another. Police radio systems almost always use two-way radio systems to allow for communications between police officers and dispatchers.
Royal Thai Police radio operator
Liverpool City Police radio operator
Antenna of the Bavarian State Police, Germany
A two-way radio is a radio transceiver, which is used for bidirectional person-to-person voice communication with other users with similar radios, in contrast to a broadcast receiver, which only receives transmissions.
Naval air traffic controller communicates with aircraft over a two-way radio headset
A variety of portable handheld two-way radios for private use
VHF marine radio on a ship
Two-way radio in a fire truck used by firefighters to communicate with their dispatcher