Specifications Voltage 12V DCPower 400WControl Box Dimensions 163mmx118mmx40mmHorn Size 145mmx140mmx60mmFeatures 8 Tone Hands Free Operation with override from the horn ring Siren 400 W wireless handle remoteCan control 2 LED lights with Accessory Switches Suitable for all kinds of special vehicles to use Wiring method The main red lines is connected to the positive electrode of the battery the black line is connected to the negative pole and the other 2 green wires areconnected with the horn The white and yellow can be connected to each other by 2 flashing lights Package include 1xSiren box1xControl box1xRemote1xUSB nozzle1xUser manual3xWiring accessories