When wearing these sun glasses the hidden video camera lets you record exactly what you are looking at to MP4. The hidden hardwired color camera built into these sunglasses has a 92 degree field-of-view so you will not miss any action. You simply run the small wire down trough your shirt or jacket and plug into MP4 digital recorder. Cool portable video for fun or covert work. It is also great as a surveillance camera, a toy for hobby enthusiasts, as body worn solutions and so on.