This is a low cost,  effective way to discover, view and record transmissions from wireless CCTV and spy camera systems. To be used in conjunction with your own portable video camera with video input (video camera not included, input to be as per yellow/white jacks in picture) for the viewing and recording. Powered by a 9 volt PP3 battery (not included), you can switch between all four popular wireless camera channels to see any transmissions within range (typically 50 to 70 metres).