THE COMBAT PUSH-TO-TALK MEASURES 2" WIDE X 2" TALL X 1" THICK. THE FRONT OF THE PTT HOUSING FEATURES A 1", SHROUDED PTT 'EMERGENCY' SWITCH. THIS SWITCHING MECHANISM PROVIDES BOTH A TACTILE FEEL AND AN AUDIBLE CLICKING SOUND. IT WAS DESIGNED BY A TACTICAL TEAM TO BE USED EXCLUSIVELY IN SITUATIONS WHERE THERE WAS NO INHERENT DANGER OF A SUSPECT(S) HEARING THE DEPRESSION AND RELEASE OF THE BUTTON -- ITS EASE OF LOCATION AND ACCESS WAS THE DRIVING FORCE IN THE DESIGN AND POSITION OF THE SWITCH.