I purchased an item that was advertised as a RC car/helicopter/plane wireless camera. Even though the camera worked wirelessly, it was very sensitive to movement. The receiver would have to be retuned over and over as the camera moved. It could not handle any sort of obstruction along the path between the camera and receiver. I was able to interrupt the signal simply by walking between the two. In short, this item was advertised as a rc hobby camera, whereas in truth, it is simply a wireless surveillance camera that's designed to be fixed in one spot and tuned in, then left alone. Note that the box the product came in describes it as a surveillance camera for shops or homes, which is in truth what it turned out to be. However, the description provided by the seller doesn't reflect that.