OK, we're confused (even more than usual). When we first saw the headline for this item on Red Ferret--"Shower Security Cam"--we thought it was something that would keep an eye on the kids or the front door while you bathed. Simple enough.
But then we noticed the image on the device's screen, which appears to be the person in the shower, not those being surveilled on the outside. And the transmission can be viewed wireless on a computer and a VCR. So rather than speculate on its intended (or unintended) uses, we'll just say that it functions as a radio and a mirror too.