Advanced Bark Control Collar by Sunbeam (Safe & Pet Friendly: Same technology used by Professional Trainers). Collar works on most dogs, we have two dogs it worked on the one but not the other dog, who is an excessive barker but in his case no collar worked but personal training. So, this is not the "magic bullet" for excessive barkers (be aware that your dog might need training) but great for normal barkers

• 3 ADJUSTABLE CORRECTION LEVELS
• WEATHERPROOF
• LOW-BATTERY INDICATOR

3 ADJUSTABLE CORRECTION LEVELSSunbeam