Blueguns Training Radio M/A-COM Blue. It gives instructors the opportunity to "listen in" to the lectures and demonstrations without the distraction of radio activity. It also allows students to "take over" the training when the instructors are not present. In this case the students are the ones who will be listening in because it is their responsibility to make sure the targets aren't in the line of fire. Using their own PTT instructors can monitor student radio transmissions for safety and instructors can listen in as well. Specifications for Blueguns M/A-Com P5100 Radio: Manufacturer: Blueguns Color: Blue Radio Model: M/A-Com P5100 Package Contents: Blueguns M/A-Com P5100 Radio Blueguns FSP5100: M/A-Com P5100 Radio Blue