【3 Training Modes】: This circle has 3 effective dog training modes: contains sound, vibration and electric shock, freely choose the best mode for your dog. 【500 Meter Range】: It helps you control the animal within a range of up to 500 meters. You can use it anywhere, be it in your garden, a park or even at the beach. 【Waterproof IP67】: This product is waterproof, so you can use it in the rain. But it cannot be used when swimming because not all parts are waterproof. 【Rechargeable and quick to charge】: Built-in lithium battery. Our dog training collar provides 2-3 hours in use and 6-12 days in standby. Transmitter and receiver can be loaded at the same time. 【Adjustable Collar】: The shock collar is made of premium material that is gentle on your dog. This remote training collar fits neck sizes up to 3.9" to 19.3" and would be perfect for small, medium and large dogs from 7 to 45 kg (15 to 100 lbs). the personality of any dog from sweet to stubborn.