Dog Chaser, Ultrasound dog repeller whistle w. blinding flash

Using the latest ultrasonic technology, the Dog Chaser produces a discomforting but not harmful high frequency ultrasound: dogs hear it, humans -- do not.
Besides the ultrasound it is capable of temporarily blinding the dog with a super bright, flashing LED light.
The ultrasound feature can also be used in training dogs.

• Helps stop the approach of unwanted dogs at up to 15 feet.
• Pocket size.
  
• Requires one 9 volt battery.