Keep unwanted barking and aggressive behavior under control with the Dog Drive Ultrasonic Bark Deterrent Device. Designed with three ultrasonic heads, this device effectively emits high-frequency sound waves that safely deter excessive barking and help in dog training or personal protection. The built-in LED flashlight enhances visibility at night, making it a perfect tool for dog owners, joggers, and outdoor enthusiasts. Portable and easy to use, this device is a humane, non-harmful solution for discouraging barking and aggressive behavior in dogs.