A spy camera is sometimes all you need to confirm your fears that there things happening that you probably will not approve. For example the nanny beating the hell out of the kid or the wife sneaking in the gardener for a frolicking on the couch. A spy camera is very useful in gathering evidence be it at the workplace or at home. This evidence can then be admissible in court or any other arbitration. Placing the camera for a perfect view is probably a tricky affair as one has to experiment with a few spots before getting the perfect shot.
Hidden cameras should be placed to have the minimal chances of detection. The best way of doing this is by concealing the camera in a gadget or household appliance. Some of the more popular gadgets for concealing a camera are wall clocks, HiFis, TVs, flower pots, air purifiers, table lamps, picture frames etc. only your imagination can limit you to the places around the home in which you an hide the camera. The trickiest aspect is in getting the distance and angle right. While the clock fro example, may have a view of the whole table room, it might be at a very high angle.
With hidden cameras wireless storage, one can get more options in the places to hide a spy camera. The fact that there are no alarming wires trailing around also makes the camera difficult to detect. This kind of hidden camera is probably the best.