I have 1 "Ammocam" by Bullseye Camera Systems for sale.  Used to be a dealer and had this one left.  Has never been used.  Wifi range is up to 300 yds with a clear line of sight. This is the first generation so to speak.  The new version starts around $360 so you can save quite a bit with this one.  The picture is what it looks like.  Search "bullseye camera system" to find the new website if curious.