4 effective training modes - Sound, Vibration (levels 0-16), Strong vibration (levels 0-16) and LED lights you can choose the appropriate mode. to train your dogs. In addition, the training collar has a memory function for settings, no need to reset again. every time.Ideal to help with Correct dog barking, walking, biting, burrowing and other bad behaviors. 2000m Range and Safety Lock-Barrier-free range between TV and TV command and the receiver is up to 2000 meters, allowing you to easily train your dog to inside just like outside. outside. The keypad can be locked. to avoid any accidental operation, allowing you to carry the remote control without risk. Water resistant Water and Rechargeable - The training collar receiver is water resistant. IP67 water resistant so you can train your dog to any time, whatever the weather. Equipped with With a USB charging cable, it can charge the receiver and remote control. It can be used for 21 days after a 2 hour charge. Suitable for all dogs - This dog training collar is suitable for small, medium and large dogs. The collar is adjustable to a length between 4 to 10 cm. 62 cm. This dog training collar is safe, comfortable and effective for dogs weighing more than 3 kg.