Scram Patrol Ultrasonic Dog Repeller Chaser Stop Barking Attack Animal Protecton by US Patrol Ingenious Sonic Scram Patrol Gun Complete with Laser Light Sighting Repels cats, dogs, squirrels and other nuisance animals without harm Effectively target animals up to 20-Feet away Ultra Sonic for use without detection or disturbance of neighbors Can also be used as a PET TRAINER to help emphasize verbal commands such as sit, heel, stay, quite down, etc