Item Type: Dog Barking Control Device_x000D_ Material: ABS 1ULTRASONIC TECHNOLOGY: Anti barking device adopts ultrasonic technology, it will produce super strong ultrasonic waves to repel dogs. 2DOUBLE SPEAKERS: Dog barking control device adopts double speaker design, the ultrasonic waves are stronger and the dispersal force is stronger. 3LASER DESIGN: Dog barking deterrent device adopts laser design, the laser rays stimulate the dog's eyes and scare away the dog. 4MULTI SCENE APPLICATION: Dog barking deterrent can scare away vicious dogs, stop close, and also train dogs to stop barking. 5COMPACT DESIGN: Dog bark stopper is small in size and light in weight, does not take up much space, suitable for carrying and using.1 x DogBarkingControlDevice