Product description First: It can drive dogs and generate super strong ultrasonic waves, which can make dogs escape quickly. People can’t hear them, but dogs and cats can hear them. When dogs hear the sound of ultrasonic waves, they become uncomfortable and stay away from people. Second: He can train dogs. This product can effectively stimulate the dog’s nervous system, so that it can obey the owner’s instructions and instructions. It has infrared light, which can prompt the dog to follow. How to train it depends on personal preference. Third: This product has three gears, the first gear is the torch light function; the second gear is press and hold to turn on the light; the third gear is ultrasonic and flashing white light, which is used for training and driving dogs. 1. With only one product in hand, you are not afraid of dogs when you go out at night. 2. The dog training mode of this product. 3. This product has LED lighting function, which is energy-saving and durable. 4. This