UPGRADED 2018 DOG BARK CONTROL CHIP -- As a result of using dog bark collar for small medium large dogs, we have upgraded chip. 7 adjustable sensitive level can be customized for any breed of dogs. Now your sonic bark collar will not react to barking other dogs. NO SHOCK COLLAR, HUMANE CORRECTION -- With 7 safe vibration and sound levels, no harm dog training collar. Finally, you will be able to correct your dog's behavior with the best no bark control collar! ADJUSTABLE ANTI BARK COLLAR -- High-quality nylon strap with reflective stripes is easily adjustable and this stop barking control collar is suitable for dogs weighing 11 to 110lb with. 100% water-resistant. SATISFIED CUSTOMER IS NUMBER ONE GOAL -- So we along with the stop dog barking device we added to the set 2 battery and 2 colored covers, and also the e-book. 100% SERVICE AND GUARANTEED -- We are happy to provide full satisfaction with our Anti Barking Device. And offer 1 year warranty! Buy it with confidence!