The ESP SPIDER is self-contained, has an internal Lithium battery, and provides four composite Color Video Base-band Signal (CVBS) inputs and two outputs. One output connects to a video recorder. The second output enables you to view live feed on a monitor. The SPIDER Quad Splitter is designed to work with the Sting family of advanced surveillance recorders. The SPIDER Quad Splitter can also be used with other video recorders.