The Code 3 XCEL siren adds features to help officers more easily use it, including over-sized Manual and Air Horn buttons underneath the three-level slide switch. Functions such as Standby (STBY), Wail, Yelp, Alt. Tone (Hyper-Yelp or Hi-Lo), and Radio Rebroadcast (RAD) are easily identifiable on a rotary switch in the center of the control head. Six programmable auxiliary buttons are located to the right of the rotary switch and can be set to momentary or on/off. The XCEL siren is 6-½ inches wide by 2-¾ inches high by 5 9/16 inches deep. It weighs 3 ½ pounds. The operating voltage is 10-16 VDC and the output capacity is 100 or 200 watts. The three-level switch current for Level 1, Level 2, Level 3A, and Level 3B is 15 amps each. Auxiliary switches A-F are capable of 10 amps each. The XCEL passes SAE J1849, 2004/104/EC, and California Title 13 when properly configured and comes with a five-year warranty.