Garmin Astro 220 Dog Tracking Collar Bundle +DC40 DC-40
The product is pretty much as described except for one thing.  I can not come even close to the range that is claimed (9 miles line of site).  It is closer to about 2.5 miles line of site.  I only get about 0.5 miles in hilly country and that is with the extendable long range antenna.  My hounds' voices carry further than that.  If my dogs are on a trail, there is not much advantage to having the system.  I would be interested to hear what others are getting for range.