Signal Vehicle Products' UniStar Command Center combines a full feature 200 Watt siren, an 8 function light control switch panel, and traffic director controller all into one dual color keypad driven unit. The control head features a dual color lighted keypad, a 4-position progressive slide switch with LED indicators, LED speaker diagnostics and an attached Noise cancelling PA microphone. The amplifer and switch box mounts conveniently and connects to the control head through a telephone style cable. Control Head Size: 6-1/4" x 3-1/4" x 1-1/4" , Weight: 9.25 lbs.