Ultrasonic Technology: Emits a high-frequency sound that only dogs can hear, effectively stopping barking without causing harm. LED Light: Includes a built-in LED light for nighttime visibility and additional training capabilities. Versatile Use: Ideal for training your dog or keeping stray dogs at bay while walking or jogging. Portable Design: Compact and lightweight, easy to carry on walks, in the park, or on trips. User-Friendly: Simple to operate with clear instructions, suitable for all dog owners regardless of experience. Discover the efficient way to train your dog and control barking with our Ultrasonic Dog Repeller. This device uses advanced ultrasonic technology to deter unwanted barking and behavior, making it an essential tool for dog owners. Colour:Black/Blue Material:ABS Package Contents: 1 * Ultrasonic Dog Repeller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.