Siren ESAS-818: Low cost siren provides a wide range of features Manual button generates a variety of tones, providing hand-free operationCompact and install easilySound Available: Wail-1, Wail-2, Wail-3,Horm-1, Horm-2,Siren, Co-co, Lamp1, Lamp2, Phasr, Wail-2(6),Mic Siren