【3 Training Modes】: Freely choose the best mode for your dog. In addition, a lighting mode is also provided. 【Adjustable Safety TPU Collar】: Our collar is made of comfortable and soft anti-wear TPU materials (not nylon) to prevent disease from the skin caused by moisture and can be adjusted freely according to the size. 【1000m Range and IP67 Waterproof】: The remote control and the receiver are waterproof and the maximum operating distance can reach 1000m (3300ft), allowing you to correct the dog’s behavior anytime and anywhere. 【Long Standby with USB Rechargeable Battery】: The powerful battery life no longer make you worry about battery issues.