Features: The Dog Bark Preventive Device utilizes advanced long ranges ultrasonic technology to effectively stop unwanted barking and bad behavior without the need for yelling or physical reprimands.Crafted from ABS material, this device features Innovative technology that safely captures your pet's attention, providing a kind alternative to traditional shock collars.Ideal for dog owners, trainers, and neighbor search a peaceful environment, this device is suitable for both men and women who want effective solution for managing pet behavior.Perfect for use at homes , in this park , or during walks, this versatile tool ensures a quiet and harmonious setting by addressing excessive barking and other disruptive behaviors.designs with safety and efficiency in mind, our family run business have developed this innovative product to enhances the bond between human and their furry companions while maintaining peace in any setting.Specifications: Material: ABSSize: about 6x14cm/2.36x5.51inchPackage Includes: 1xPet Preventive Devicenote: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid,Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.