Review on PETFAT Shock Collar with Remote for Dogs - Training Collar for Large, Medium, and Small Breeds, Waterproof, Bark Collar with Light by Nicole Baca

Bought to protect my Corso from excessive whining. Keep in mind he's 13 months old and weighs 130 pounds so I won't use that on a small pup. This is a great learning tool in addition to active obedience work. Don't rely on it alone to change unwanted behavior if you don't want to continue obedience training as the owner etc. I also use the audio as a reminder method when we go for night walks and Avi goes a little further than I prefer. Easy to assemble. Easy to use and adjust the levels to match your dog's physical response to stimuli. Easy to charge. does what i need