The Smart Auto Anti Bark Dog Collar Training Collar by Colofrog is a versatile and convenient training tool designed for all sizes of dogs. With a 2-in-1 design, it offers automatic anti-bark functionality along with advanced training features such as adjustable shock levels and a 3300 ft distance range. This collar is equipped with vibration, static/shock, and ultrasonic control methods, making it effective for various training needs. Additionally, it is waterproof, rechargeable, and includes a low battery indicator for added convenience during use.