We have a large number of switches and sirens in stock. Everything from a simple 100 watt PA300 siren to the switch/siren combo boxes like the MasterCom/ V-Con/ and Whelen 295HFSA6's. The switch boxes are $45, PA 300's are $90, MasterComs are $200, V-Con II's are $150, and Whelen HFSA6's are $200. Call or email us if you have any questions about the pricing on other sirens not listed. All prices do not include s/h.