I was playing with this today, it's a pretty neat little item.
You download a Free App, turn it on and you can see the image on your Smartphone or Tablet. I could control the Lighting level on my Smartphone and take Pictures or Video.
I didn't give the Range a thorough test, but it worked from two rooms away, and also inside my Refrigerator from the next room. I'm thinking I'll be keeping one of these.
$119 + S & Hhttps://www.licensedelectrician.com/Store/RT/Ferret-WiFi.htm