A palm-held microphone with integral pre-amplifier and special circuitry providing a particularly penetrating and clear modulation. A modulation level control is located on the front as is the on-off switch of the "Roger Beep". The circuitry of the "Roger Beep" is bitonal and pleasant to the ear. The microphone is powered by a standard PP3 9 Volt battery and comes fitted with a robust but flexible spiral lead, terminated in a 4 pole connector with standard connections which will fit most standard two-way radios.
