Kerbl Dog Calmer Ricko HB 100 Ricko Was Designed to Stop Dogs from Barking but it Turns Out Many Dogs Just Kept Going -- though some stopped. But What it Has been Great at is being able to accurately track and count the number of times your dog barks when you're gone. No More having to believe angry neighbors since you'll have all the data on your Ricko Unit. If You want to leave a command on the device to keep your dog company while you're gone, it's easy to do too. Just record your 'command' or 'comforting words' in the unit and each time your dog barks, your words will be delivered to your pet.