Wireless Hidden Spy Camera use a digital transmitter to send the video signal from the camera to a receiver that hung next to the device, receiver can connect to a monitor or DVR. Digital Wireless transmitter provide more stable signal reception. The wireless video receiver can be used up to 429 feet away from the camera.
In addition, these cameras are also in the position where it could be quite difficult to set. Wireless Hidden Spy Cameras are ideal for real time monitoring and surveillance.