Combination Blazers and C12 in a single compact unit. Beacon and siren combination features aerodynamic design and better vehicle tire grip. A 30W speaker with integrated amplifier produces 110dB sound level and has 30 tones available to choose. 360°coverage, optimal light intensity and low amp draw. 10-33V multi-voltage, with a cigar plug switch. Magnetic Mounting approved with maximum speed of 239 km/h. Meets and exceeds R65 Class 1, R10 , SAE, speed test and approved Francia siren tones.