Worked for me
http://www.petmarket.com/ergo-no-bark-device-p-432.html
Stop annoying barking from your dog or your neighbor's dog with Ergo No-Bark Device. Humanely and effectively deters barking and noisy dogs without inflicting harm or pain. This device automatically detects dog barking and responds to the barking by emitting a high-pitched ultrasonic tone that humans can't hear. Although the tone does not cause pain to animals, most animals feel uncomfortable and will stop needless barking.
Features:
* Deters your dog from barking. Or your neighbor's!
* Humane technology doesn?t inflict harm or pain
* Designed for all breeds & sizes of dogs
* Covers up to 30-ft. radius.
* For use indoors or outdoors (protect from direct sunlight or rain).
* Includes AC adapter with an extended power cord
* Great for Kennels and multiple dog households
Works With Any Size/Breed of Dog
No-Bark I technology, developed and approved by veterinarians, works with any size or breed of dog. It can be used to cure dogs? behavioral problems or to train puppies not to bark. Ideal for kennels or multiple-dog homes. No-Bark I automatically reacts to barking made from up to 30 ft. away. Simply install the system pointing directly at the barking dog's location. No Bark I works best if it has a clear line-of-sight to the barking location. Walls, fences and garden foliage will decrease the No-Bark I effectiveness. It includes an AC adapter with an extended power cord. The No-Bark I willautomatically turn on when barking occurs.
Won't Disturb People:
The No-Bark I features variable sensitivity adjustment. It reduces the chances of not being activated when barking occurs or being activated when there is no barking. No Bark I also offer?s dual tone settings: Ultrasonic frequency designed only for dogs/animals or Audible range for humans and animals. The audible setting can be used to direct the sound and focus the NO Bark I energy to the exact spot that you require. Then, the unit may be switched to the ultrasonic mode.
Note: No Bark I is weather proof but not water proof. If used in an outdoor setting please make sure that the unit is protected from direct sunlight and rain.