This is a nylon stick is intended to open the jaws from the attacking Pet dog and obtain it to halt biting you or An additional human being. It options many selection options to regulate the sensitivity which is weatherproof and durable for outside use. This device requires 9-volt batteries, https://pawpressnews.com/best-dog-deterrent-device-for-dogs-the-ultimate-solution-for-bark-control-and-training