Features: 1. Made of high-quality ABS material, not easy to break, can be used for a long time, durable. 2. The ultrasonic waves emitted by the ultrasonic trainer will stimulate the dog and surprise the dog, thereby interrupting the barking and preventing the occurrence of subsequent uncivilized behaviors. Continuous use for a period of time will gradually improve the uncivilized behavior of the dog and develop a good habit of traveling in a civilized manner. 3. In view of the problem that dogs can adapt to the ultrasonic frequency, the ultrasonic frequency conversion gear has been added. 4. Rechargeable, long standby time. 5. Suitable for dogs of all sizes. The sound from the repeller won& 39;t affect humans, but it can grab a dog& 39;s attention. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: ABS Size: As shown 1 x Dog Repeller