Device Repeller

Electronic Repellers ultrasonic dog …?
Dear Yahooligans: I hear about a dog repellent ultrasonic mail. Apparently, the touch of a button and transmitted waves is annoying to dogs but inaudible to humans (Nexxtech / Model # 6310994): 1) Is secure the device? Will it cause the dog to hurt instead? 2) This device is effective? Does it really work? Please respond ASAP. Thank you. — Stephen W.
1) Yes Not likely. 2) Yes Yes http://barkingdogs.net/ safe principles. Make sure the dog can not get either the case or power supply. I know a clever dog who decided to chew coach ultrasound instead of changing their behavior. (That was a bad installation by the owner) The website above is a good resource. It has a link to a Yahoo group to be equally useful. Best of luck.
Yard Gard Electronic Pest Repellent Device