RadioWorks Product Detail Motorola HLN6819 Siren Switchbox Model Number: HLN6819 Siren Switchbox Control the function of your siren with this swichbox. Controls include on/off switch for the siren as well as the public announcement (PA) feature. Features Specifications Documents Related Products No additional features are available for this product No additional specifications are available for this product No downloads are available for this product Motorola APX™ 1500 Single-Band P25 Mobile Radio Motorola APX™ 4500 Single-Band P25 Mobile Radio Motorola APX™ Dual Radio Are you ready to get to work? Get in touch and find out how RadioWorks can help your business. (800) 591-5525