Feature●3-position push button control. Backlit/Rubberized microphone control head. (8) 10-amp light and AUX relay positions●100 Watt output- wail, priority, air horn, manual peak and hold tones. Horn ring transfer●Remote on/off switch box with built-in PA volume control●Operating Temperature Range: -30°C to +65°C; Standby Current :less than .22 amperesDescription Federal signal’s innovative 650 Series Siren allows for all sound and light functions to be enabled by Rubberized push buttons located on the unit’s compact and easy to use microphone control head. The advanced microprocessor based amplifier exemplifies Federal signal’s commitment to remain today’s unmatched leader in the field of Siren technology. .