Ultrasonic Dog Repeller ZF-851 with Flashlight

Dog Repeller Ultrasonic Dog Repeller ZF-851 with Flashlight ∙ Ultrasonic dog repeller ZF-851 with flashlight and laser pointer The ultrasonic dog repeller ZF-851 protects you from aggressive and dangerous dogs that may threaten you while walking, running or cycling. To affect a dog, point the device at the animal and hold the button for a few seconds. Ultrasound, inaudible to humans, will stop the dog and prevent it from approaching you. If necessary, you can hold the button longer. Working di