The Humane pet training method that uses effective ultrasonic sound. Petzoom Pet Trainer uses a High Frequency pitch that only dogs and cats can hear. Teach your pet to: Sit, heel, fetch, roll over. Complete obedience training instructions included. Petzoom Pet Trainer may also be used by joggers, bikers, walkers and hikers to keep animals safely away. Petzoom Pet Trainer is effective up to 20 feet away. Battery indicator light show you it's working. Uses 1 9 volt battery, not included.
