auto car alarm system 1)Model;HT-680 2)separating control electronic siren system 3)9 tones 4)power:200W,300W,400W auto car alarm system1.Model Number: HT-680 2.Voltage: 12-13.8v 3.Material: Iron Car Make: any cars 4.Size:35*21.5*7.5cm 5.Weight:3.15kg6.Tone:siren,police,fire fighting,wrecker,project,ambulance,whistle-1,whistle-2,whistle-3