Safe, Effective, Humane Training Modes — These Bousnic shock collar for dogs offer customized Static Shock (1-16) and Vibration(1-8) levels, as well as a standard “Tone” mode. These variable modes can be tailored to your dog’s temperament, while the adjustable nylon collar fits 8-26 inches in length. Indoor & Outdoor Versatility — The remote for this dog training collar can reach up to 1000 feet, allowing you to train dogs in the backyard, the park, or anywhere else. The remote also features a dual channel to support training 2 dogs simultaneously. Premium, Ergonomic Design — The easy-access button sizes and simpler format are easier to operate for pet owners and help dogs learn commands more effectively. A premium training collar for expert trainers and new pet owners, the conductive silicone prongs are also safe on coats and skin.