Effective Bark Control: The PetSafe Bark Collar helps discourage nuisance barking with gentle static correction and multiple correction levels for safe training Smart & Reliable Design: Features automatic bark detection with vibration and sound sensors, plus a built-in safety feature that prevents overcorrection Comfortable & Durable: Made with adjustable fit collar for dogs 8 lb and up, this weatherproof bark collar offers long-lasting performance for outdoor use 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families