I was looking at this one to buy one day. https://www.amazon.com/Vixen-Horns-130dB-Manual-VXS-1200M/dp/B0106ZE4UA/ref=sr_1_8?dchild=1&keywords=hand+crank+siren&qid=1596657075&sr=8-8 I just tried cranking a 30 dollar siren that my boss bought. He bought this one. https://www.amazon.com/Ho...