Having trouble with unwanted "visitors" around your garden? If cats, dogs, squirrels or other animals are making themselves at home in your yard, you"ll want a product that really works. STV have produced the well known Defender brand of pest control systems and devices for a wide range of unwanted guests in and around your home or workplace. The STV632 sonic repeller gun with laser-light sighting repels cats, dogs, squirrels and other nuisance animals without harm.This trigger action and laser-light sighting gun will give off an ultra sonic sound that only animals can hear. The mega sonic scatter unit can effectively target animals up to 20 metres away, and help you to protect flower beds and plants from unwanted pests. This STV632 is ultra sonic and there will be no disturbance to neighbours.