This efficient bark control device emits a 25 KHz ultrasound, which is beyond the range of human hearing but captures your dog's attention without causing harm, making it a safe way to correct unwanted behavior, stop barking, or prevent your dog from consuming unsafe food. It's suitable for dogs of all types and sizes. The device offers four effective modes, including three ultrasonic frequency modes and one beep mode for effective dog training. It also features an extra bright LED flashlight for added safety when outdoors at night, doubling as a regular flashlight. Using the device is simple, with a power button, a beep mode button, and a right-sided button to switch between the ultrasonic frequency modes. Its compact size, measuring 4.7 x 1.8 x 1.4 inches, and included wrist strap make it highly portable, allowing you to carry it in your pocket for activities like walking, jogging, picnics, and cycling. Additionally, it's USB rechargeable, requiring around 5 hours for a full charge and offering a standby time of approximately 15 days. You can charge it via an adapter, laptop, power bank, or other compatible devices.