BUILT-IN LED LIGHT AND REFLECTIVE COLLAR: The special built-in LED light on the shock collar and remote control helps you find your dog even in dark environments. And the reflective collar can reflect light at night to keep your dog safe, perfect for walking at night EXTREME LONG RANGE: The hassle-free long range of 2600 feet (875 yd) makes it easy to train your dog in the park or backyard without worrying about them going too far. If there are obstacles around, the long-range range is about 350 feet Removable and safe rubber shock absorption head: Extra-conductive silicone at contact points to protect your dog from skin damage. The contact points are removable, if you don’t need the vibrating mode, you can twist the vibrating head to reduce friction on the dog’s neck IP67 Waterproof Receiver: Your dog can wear the collar to play near water or bathe freely. But be sure to close the charging port when you immerse the receiver in water, do not put it in water for a long time 4 training
