A wireless camera receiver is an essential component for any wireless camera. A receiver tunes into your cameras and picks up the audio and video of your cameras. A receiver is what makes it possible for your wireless cameras to work, and most wireless cameras come with their own receivers when you buy them, but you can also buy cameras and receivers separately. A receiver is what will determine the camera's range and reception quality. If you want a good picture and you want to install your camera far away from where your receiver is, you have to make sure that the receiver is a good product.