Dog Training Collar with Remote, 3 Correction Modes, Vibration, Tone, & Shock, Light and Keypad Lock Mode, Electronic Dog Shock Collar Waterproof Electric Dog Collar Set for Small Medium Large Dogs, Black When you’re looking to improve your dog’s behavior at home or in social settings, the D8 Dog Training Collar is the perfect solution to all your dog training needs. Safe, humane, and effective dog shock collars are great for training all shapes, sizes, and breeds dogs. Waterproof dog training collar with 5 training modes, Beep, Vibration, Shock, Light and Keypad lock, help you to teach a dog basic obedience commands and solve an uncontrollable dog's behavior problems.The security keypad lock prevents any mistake-operation on the remote. Safe adjustable 0-99 static levels: you can adjust the accurate and comfortable static level for your dog.IP68 Waterproof and adjustable electronic trainer collar: The training collar receiver is waterproof which offers your pets maximum flexibility during outdoor activities.Extra-long life and rechargeable battery: rechargeable remote and receiver, a general USB charging cable included in the package can charge them at the same time. After 2 hours of fully charging, the collar is able to work 15-20 days. Not used for training puppies younger than 6 months. Recommended training collar for small medium large dogs above 10 lbs.We suggest use vibration/beep mode to train your dog.Shock mode should always be the last mode to use.