The Smart Automatic Anti-bark Dog Collar by Sodog is an intelligent and waterproof device designed to help train dogs to reduce excessive barking. It features automatic anti-bark technology, a low battery indicator, and is rechargeable for convenience. The collar is available in various sizes (XS, S, M, L, XL) and offers multiple control methods including vibration and ultrasonic sound. The VT-181 model provides a humane way to address barking behavior without the use of shock.