SA-360 Rugged 100 watt self contained electronic siren amp with dip switch options of desired siren tones. Reliable three position rocker switches featuring Wail, Yelp, Phaser, Manual and Air Horn siren tones with optional Two-tone/HiLO sound. Hands free Horn Ring Cycler 2 remote tone selection. No hassle 5 year limited warranty NO PA Size 6"w x 2"H x 6"D