The dog training collar has 300 meters to meet different levels of training. If you are worried about puppy barking, come. Special feature: Effective Dog Trainer: Dog collars are designed to help your pet train successfully without barking. It is safe for puppies and can effectively stop premature barking. Remote control: This dog training collar has a remote control up to 300 m, so you can train your dog in the garden, in the park or anywhere else. SAFE AND USER-FRIENDLY TRAINING MODES: This remote control dog training collar features a custom static shock from 1 to 100, vibration (1 to 100), light mode and sound mode. These variable simulations can be adjusted to suit your dog’s temperament. Liquid Crystal Display: Clear liquid crystal display with menus that allows the operator to manage the prompts and navigate the menu easily. Control up to 2 channels: The remote control only supports 1 remote control transmitter and supports up to 1 dog training. If you have more than one dog,