Hidden spy cameras, hidden security cameras or covert spy cameras are all the same thing. They are objects that you see around the house or office on an everyday basis. The only difference is they have board cameras hidden inside them. The board camera sees images through a pinhole lens in the product. It is virtually impossible to tell that there's a camera inside these products. That is what makes them so effective. The newest version of these covert cameras has a DVR inside. These hidden DVR cameras can record images unlike their counterparts that don't have a DVR. Those products need a separate DVR to record. These hidden DVR cameras use an SD card to record many hours of standard recording in color. Some of these hidden security cameras have the capability of using a bigger SD card-up Read more [...]