Senken Vehicle Emergency Warning Police Car Siren

SENKEN Vehicle Emergency Warning Police Car Siren 1.Operates single 100/150 speaker; 2.Designed with new tone methods, totally increase warning efficacy; 3.8 major operational modes: Radio, Aux, Wail, Yelp, Pir, Air-horn ovvrride, user configurable tone and pushbutton manual override; 4.With outside trigger function: when siren is switched on, Wail, Yelp and Pir may be actuated via steering wheel horn ring, simple for driver to handle; 5.Has the pola