are primarily designed for use in a vehicle. They
have a bracket that enables you to mount them under your dashboard or in
some other convenient location, plus they run off the 12 volt vehicle
battery power. You could also use these radios inside a building as long
as you use an AC to DC converter to provide the 12 volts DC they need.
The benefit of these radios is their power output. They may have as much
watts of power, but are more likely to have under 50 watts.
There is no built in antenna so an external antenna is required. Given
the high power nature of these radios, the antenna should be outside the
vehicle or building and mounted as high as possible and the cable of the
antenna is then run the connector on the radio.