Has stopped our dog from nuisance barking when left home alone.
After complaint nets from a neighbour we tried the BP-504 bark collar.
I left everything factory set except I put in on L9 which escalates the correction if the dog barks continuously.
It also allows 1 or 2 barks which seems a good idea to allow the dog to alert if someone approaches the house.
The dog is a large male GSD.
The 1st day the collar activated 17 times worried us, we tried 1 more day and it reduced to 3 activations, the next time we left him home alone (a week later) there were no activations.
Very happy, the “training” mode has worked well for our dog.