This electric dog training collar is perfect for teaching your dog good behavior with its 3 efficient modes: beep, vibration, and adjustable safe shock (levels 1-16). With a range of almost 1000ft, you can easily train your dog in various settings such as the backyard, park, or beach. The receiver is waterproof and rechargeable, providing maximum flexibility and convenience. It is suitable for all sizes of dogs, from small to large, and features an ergonomic remote for easy handling. The battery life is long-lasting, with the receiver lasting up to 11-15 days and the remote lasting for over 1 month. This dog training collar is designed to be safe, effective, and humane, making every day a good dog day.