Worked wonders with my Mastiff!
Owner of a young, large and anxious Mastiff that started giving my neighbours some grief with his barking.
We settled on this collar to assist us along side some basic ‘quiet’ and ‘speak’ training to get it under control and it has been AMAZING!
This collar allowed my boy to bark a few times before activating, giving him the freedom to bark without allowing him to bark continuously and my neighbours have been very thankful :)