Spy camera has a different purpose from a typical surveillance equipment. This type of camera is hidden so as not to draw attention to the violation. Size and shape of the camera is an important factor to consider. Compact cameras are easy to handle and store operations discreet situations. Its shape would be the best entry every day or something barely visible to the naked eye. That is why they are made of pre-mimetic units, as pens, watches, key rings, remote controls, car keys, cameras, etc. Wireless have a great advantage only those that require cables that can be discreet and low profile to capture ' action.