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                        Mobile Two-Way
                        Radios are
                        vehicle-mounted wireless devices that are used to send
                        voice or data messages one-to-one or one-to-many over
                        radio frequencies within a local area, city, or state.
                        They are often installed on the dash of a vehicle, and
                        can run off its power source. They are used by someone
                        who doesn't need to communicate away from their vehicle.
                        Mobile radios may be
                        combined in a wireless radio communication system with Portable
                        Two-Way Radios (hand-held wireless devices that run
                        off an internal battery). 
                          
                          
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