a trigger?
..........lol............are we talking about yorkies or guns??? I have to agree with yorkiepower, i dont belive there are any "short cuts" or magic solutions to training a dog other than what has allready been discussed on this site, $50 is a lot to pay for a computer audio that promises this "magic solution"...... the bigger question is not has any one tried it, but has anyone been silly enough to shell 50 bucks for a 'computer tape' that promses to switch your yorkie into an angel........ cmon folks, yorkies arent angels
besides, they train YOU anyways.... training THEM is just an illusion our babies allow us to have