This ultrasonic dog trainer device is a small hand held designed to assist you in the training of your dog.  It uses the pets sensitive hearing in the ultrasonic frequency range, beyond the range of human beings.  Its ideal for basic training, correcting misbehaviors.  It can also be use to stop your dog's excessive barking and repelling other dangerous dogs.  

Package includes:

• 1 Ultrasonic device with LED light
• 1 user manual
• 1 9 volts battery

This item is brand new in box.