CEASE BARKING & NASTY BEHAVIORS: Whether you have a pup that enjoys persistent barking, or you would like to train your dog to stay in the yard, this electronic shock dog collar is the way to go. Control misbehaviors, nasty habits, or aggressive attitudes, eliminate barking after a few uses, and make dog training a breeze! NEW & SMART MICROPROCESSOR CHIP: Microprocessor intelligently detects dogs’ barking, basically filter other sounds that are not related, such as crying of children, car buzzing, etc., to avoid the miscarriage of justice to the maximum extent.Built-in self-protection mode,sleeping for 120 seconds after the completion of six times, and then back to the initial state, and protect the pet. DUAL SMART DETECTION MODES: Beep+Vibration mode and Beep+Vibration+Shock mode(adjustable 1-5 Levels).Level 1st sensitivity is the least sensitive, Level 5th sensitivity is the most sensitive (lightly press the button to adjust the sensitivity). You can choose “no shock” mode as your need and effectively protect and train your dogs. FOR ALL DOGS & BREEDS(Diameter Range of Collar: 3-18CM): From Poodles, Chihuahuas and Boston Terriers to Boxers, German Shepherds and almost virtually any dog in between, our anti-bark collar fits on any dog breed. This no bark collar is cleverly designed to deliver a sound, shock and vibration with every bark. No more nighttime barking! No more uncontrollable behaviors. RECHARGEABLE AND IP67 WATERPROOF CONSTRUCTION:Built-in 480 mAh battery capacity and 2-3 hours of charge time gives you 10-12 days of use. IP67 waterproof construction can allow you to use indoor and outdoor,even swimming or rainy days. Your satisfaction is our top priority,if any problems,welcome you to contact us by email.