Setting up a surveillance system does not have to be costly or complicated. With the Outdoor Color Camera Kit w/ 2 Cameras, you can monitor your home or small business with an affordable system that includes two wireless cameras that can transmit up to 200 feet to the included receiver. Simply connect the receiver to your TV, VCR, or DVR using the included A/V cable, and you'll be able to view color video from both included cameras as well as audio. The built-in IR LEDs allow the camera to capture clear images in total darkness up to 25 feet away. The built-in microphone provides audio monitoring capabilities as well.Channel Selection The cameras and receiver have four selectable wireless channels available numbered 1 through 4. Selecting different channels for each camera will allow the receiver to display the image from each camera seperately. Channel selection is also used to avoid possible interference from other nearby wireless devices. If interference is experienced, selecting one of the remaining four channels will cause the frequency to be adjusted between the camera and receiver, thus elimating the interference. Autoscan or Manually Select Cameras The wireless reciever can be set to one of two display modes, Manual or Channel Scan. In manual mode, the user can switch between camera views using the channel select button on the receiver. In Channel Scan mode, all user selected channels will be displayed in a loop pattern switching every 5 seconds.