This is literally my favorite app. My only recommendations, although I know this is modeled after something like a smart siren, would be adding a manual Federal Signal Q2B, the rumbler/ howler siren, which you could have a button on the side that would turn on that low sound along with the normal siren of your choice. Lastly dual sirens would be very cool as many emergency vehicles have them now, and could have button or switch on the side to turn these on as well. Thank you and great app.
nicklax23 about Simple Sirens LMT