ITEM NAME:Ultrasonic Anti Bark Stop Barking Dog Training Repeller Control Trainer Device Ultrasonic Anti Bark Stop Barking Dog Training Repeller Control Trainer Device a.imagelink a:hover.imagelink {color:#000000;.What can you do when your pet dog starts barking non-stop?. The trainer is based on the theory that ultrasound (more than 20KHZ) is above the upper limit of human hearing and super ultrasonic and 2800mcd strong white light.
