Your cart is currently empty.
Got this for my Rottie, at first I was able to get away with an in ground fence across the driveway to keep him out of the road, and he was content to roam on my and my neighbors' property (about 400 acres) then he started going farther and farther, eventually roaming 5-6 MILES away from home. Got this and it usually keeps him contained. It certainly gets his attention when it goes off as it literally shocks the crap out of him (he always craps right after getting the correction), fortunately he usually turns back when it beeps. HOWEVER on occasion he is hard headed and will just take the hit until the collar runs down or times out.
Unfortunately the fence area is extremely variable. I have the base and the extender, both turned up to max range at both back corners of my house (wood siding and shingle roof). I walked the boundary area with the collar in my hand and put a flag where it first beeped, then showed him. Unfortunately tried it again a few days later and the boundary was about 20ft closer than the previous time. Charged the collar and it was still smaller than when the flags were put, so make sure to take that into acocunt