This is a device that really makes them think about somebody watching them/ I have had rummage sales and people will walk out with all kinds of things. I put this up and I watched as people looked up and seen this (red light makes it look real) and never took anything. I never lost one piece of jewerly, never found any empty boxes, and I believe it was because people thought they were being recorded. I did put a sign up that said, Smile you're being recorded! Love this ideal.