Posted: 26/02/2016 at 09:54
Probably the best bet is buy the best you can afford, read reviews on Amazon. you need to put barriers around or the thing will go Willy nilly over everthing. It won't avoid the dog do, don't think they are smell sensitive
They need to have access to a socket, they come back home when they need recharging and dock themselves.
thats as much as I know about them, not much help.