【3 Training Modes for Effective Training】With 3 learning modes: Beep (8 different frequencies), Vibration (1 to 16 levels), and Electric Shock (1 to 99 adjustable levels), this electric dog training collar makes it very easy to train your dog by allowing you to correct unwanted behaviors without shouting: barking, attacking, running away, the tendency to eat trash, causing damage, digging, etc., especially for dogs with a very stubborn and disobedient nature. 【Adjustable Intensities Adjustable Collar for Any Size Dog】The stimulation levels are optional, and you can choose the mode and its level based on the dog's temperament (starting from the weakest stimulation). With an adjustable belt from 15 to 70 cm and can be cut to fit any size, this electric dog collar is suitable for most breeds (small, medium, and large dogs). Collar Reflective nylon helps you locate your dog in the dark. 【Double Protection for Gentle Training】The safety keypad lock prevents misoperation by avoiding