we offer various kinds of sirens,they are suitable for all the cars ,and OEM are welcomed Amplifier and siren1.Tone: monotone: yelp, engineering, Hi-lo, Wail, engineering, high-frequency impulse,Yelp-s. 2.Manual: Horn*3.8sec. Yelp-s, COCO, siren. 3.Mix: yelp + Wail, Wail +Wail, Hi-lo+ Yelp-s, Yelp-s + Wail, engineering + Yelp-s, high-frequency impulse + Wail, Yelp-s + Wail. 4.Lighting: three ...
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