Siren speaker AWAX alarm with 2 pieces of wire to the main board it is attached that the red wire positive (+) wire and black negative (-) is. in connect this wire quite carefully, please, connect the wrong wires, causing a smoldering siren, and in some cases cause burns range device is also . Voltage power consumption 12 Volt is that the body material plastic tightening is makes the sound a better production to be.