The Tri-Tronics Bark Limiter G3 will stop dog barking, even with problem barkers.
This quality bark collar by Tri-Tronics features five correction levels that are adjustable from lowest to highest level. The Tri-Tronics Bark Odometer counts the number of times your dog barks while wearing the collar, which is very useful to know if you are not home during the day. If the counter indicates a lot of barking, just adjust the correction intensity to the next highest level.
Tri-Tronics bark control collars are manufactured in the USA.