Many folks assume that spies have super advanced toys to get their job done. That is partially true. But there are so many simple tools that can be used to watch a place or record audio. The Lawmate light switch hidden camera is a thermal motion activated hidden camera that can go for up to 6 days on a single charge. This hidden camera can tell the difference between a human and pets.
The light switch hidden camera can be installed anywhere in your office or at home. Motion activated video is stored on a removable memory card. Once motion is detected, the system records video. Recording stops when motion stops. This 720P resolution camera records time and date, too. Not cheap but quite handy for businesses.