1. Effective Dog Trainer: With frequency sound waves, this harmless anti barking device is safe, effective, and inaudible to humans, providing a peaceful environment without harming animals. 2. Multi purpose Training DeviceThis powerful dual ultrasonic device is designed to train your beloved pets and effectively repel unfriendly dogs, especially in low light conditions or nighttime environments. Its frequency flashlight enhances effectiveness, reaching up to 80 feet. 3. Comfortable and PortableOur dog bark control device has a user friendly design and long battery life, making it easy to carry. for on the go training, it offers compact, lightweight comfort with up to 60 days of standby time. 4. Behavioral Aid CompanionBy pressing a button, our device emits ultrasonic waves and bright LEDs to deter barking and correct behavior. It also functions as an LED flashlight to light your way home and ensure safe walks.