No Bark Dog Collar Pet Training System - Stop Barking Dogs - Electric Anti Bark Shock Control with 7 Adjustable Sensitivity Control Levels, Cruelty Free No Harm Warning Beep and Vibration Before Shock SECOND GENERATION electronic anti bark dog collar that features SEVEN adjustable sensitivity levels designed to stop dogs barking. ANTI BARK collar is the MOST effective shock dog collar to STOP EXCESSIVE DOG BARKING not only for large dogs but for small and medium dogs as well. STOP DOG BARKING collar features a ONE MINUTE protective shut off that's designed to protect your dog from continual shock. Shock collars for dogs have been proven to train your dog and stop UNWANTED BARKING. If the collar are too sensitive to the dog's coughing or bumping, you can try to press the "-" button to decrease the sensitivity. ELECTRONIC SHOCK COLLARS for dogs can be adjusted to fit your dog comfortably. When you're not using the dog shock collar you can store the barking collar in your GIFT BOX that's provided. NO HASSLE MONEY BACK GUARANTEE - We know you'll love our wallet, that's why if you aren't 100% satisfied we will provide you with a refund or a free replacement - whichever you prefer