Pinhole cameras can be divided into wireless and wired.

The wireless camera will send out data, and the transmission range can reach tens of meters or even hundreds of meters. As long as the receiver is installed in this range, the video signal can be collected. The cable camera must be connected to the data line to work, and the other end of the data line is often connected to the video recording equipment.

Moreover, any pinhole camera needs power supply; The lens of pinhole camera is smooth glass; Most pinhole cameras need some illumination to get clear images.