Anti-Barking Training Device Take control of persistent barking with a humane, ultrasonic deterrent designed to restore peace at home. The Anti-Barking Training Device automatically detects when your dog barks from up to 50 feet away and emits a high-pitched ultrasonic tone that dogs hear but humans typically cannot. After a brief interruption, your dog is encouraged to stop barking, and the device powers down on its own. The ultrasonic sound is described as harmless to both pets and humans, so you can use it with confidence. Easy to install, simply hang it on a tree, wall, or fence—indoors or outdoors. Key Benefits Detects barking from up to 50 feet away for timely response Emits a high-pitched ultrasonic tone that dogs hear but people don’t Automatic shut-off after the bark stops to minimize ongoing noise Humane ultrasonic technology safe for pets and humans Versatile installation: hang on a tree, wall, or fence, indoors or outdoors Product Details Material: ABS + electronic components Color: Black Size: 11 x 8.5 x 4.9 cm Weight: 190 g Packaging: Boxed What's Included Dog training device ×1 USB cable ×1 Screw pack ×1 Manual ×1