A High Resolution CMOS Camera is basically a tiny fixed lens camera mounted onto a circuit board. These convenient covert cameras are then installed inside mini cameras, dome cameras and various hidden cameras. They are usually sold unpackaged. And are then mounted by the buyer onto a common household object. CMOS (complementary metal oxide semiconductor) sensors are used to create images in such cameras. As well as in digital cameras, digital video cameras and digital CCTV cameras. And, as seen above, you can even attach one to an RCA-type video/audio cable.