Product Description: Training your dog just got easier and more effective. Our smart multi-mode training collar offers four effective and harmless training modes, allowing you to adjust your training methods according to your dog's weight and personality, effectively putting an end to unwanted behaviors. Features: 1. **Four Training Modes**: Built-in sound, light, vibration (adjustable to level 99), and electrostatic shock (adjustable to level 99), providing various training options. 2. **Long-Distance Control**: In open areas, the range of this collar can reach 800 meters, allowing you to easily train your dog whether indoors or outdoors. 3. **Long Battery Life**: After 2 hours of charging, the battery life can reach 20 days, reducing the trouble of frequent charging. 4. **Built-in LED Light**: Convenient to quickly locate your dog at night or in a dark environment. 5. **Adjustable TPU Collar**: Durable TPU collar with an adjustment range of 16-62 cm, suitable for dogs of different