I agree, GO FOR THE CORDLESS! I bought my present clipper (Oster Golden A5, 2 speed)) last year for the purpuse of using it on both on my horses and dogs, it's not cordless wich I really regret. Especially on the young ones, who are not used to the sound of this strange machine
and jumps around to get away from it, it's really an advantage that the cord doesn't get in the way. It's a bit more expensive, but you won't regret spending a bit more and then have the best clipper.