These spy cameras are ideal to know if your nanny treats your child with care and feeds the kid properly. You will know how much time she spends watching the T.V. or on the phone and whether she changes your baby’s diaper or leaves your child unsafe. A wide variety of hidden cams are available in the market, such as mirror hidden camera, mantle clock hidden camera, doll hidden camera, wall clock spy cam, smoke detector spy camera, teddy bear camera, and many others. Most spy cameras are wireless while wired cameras are also available.