Easy to use: Our dog barking collar features an LED screen that displays the barking mode and sensitivity level at a glance. All controls are located on the screen, allowing easy mode switching even when the collar is worn by your dog. 4 modes: These options provide an effective and humane solution to help control excessive barking without causing stress or discomfort. Sensitivity adjustment: The collar offers sensitivity adjustment, enabling customization of the training response based on barking intensity and environment, helping to effectively manage barking in any situation. Adjustable collar: This vibrating dog collar is made of skin-friendly, soft, and comfortable nylon material with an adjustable length. It is designed to withstand rain, snow, and mud splashes, making it suitable for outdoor use. Color: As shown Material: Plastic and electronic components Package Contents: 1 x Dog training collar Note: The package includes only the items listed above; other accessories are not included. Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.