Specification: Material: ABS Colour: Black Size: 13.5X5.5CM Powered By: 9V battery (not included) Packing list: 1 x Ultrasonic Dog Pet Repelled Training Device Trainer Feature： First, you can drive the dog to produce super-strong ultrasound, which can make the dog escape quickly. People can't hear it. Dogs and cats can hear it. When the dog hears the sound of ultrasound, it will become uncomfortable and thus away from people. Second, you can train the dog. This product can effectively stimulate the dog's nervous system, so that it can be guided by the owner, there are infrared lights, you can let the dog follow, how to train to see personal hobbies. Third, this product has three files, the first gear is the role of flashlight lighting; the second gear is to press and hold the lighting. The third gear is the ultrasonic and white light flash, this is used to train dogs and drive dogs.