Whelen Engineering HHS Series Hand-Held Siren/Light Control<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> 37 total tones， including mechanical siren tones </span></li><li><span class="a-list-item"> Hand held siren &amp; light control with built-in microphone </span></li><li><span class="a-list-item"> Program your configuration for customized operation. </span></li><li><span class="a-list-item"> Meets Class A requirements of SAE， AMECA， KKK1822 and California Title XIII specifications </span></li><li><span class="a-list-item"> Windows® based， XP or later operating system required. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41eCSdUu8XL.jpg" noproxy>