You may also want to see:
Meet the BulletPen: an anti-barking ultrasonic dog trainer that helps you correct unwanted behavior in your pet. It uses ultrasonic 25 KHz waves to stop dog barking. It runs on a 9V battery, so you can use it indoors and outside. The device has two training modes. It has a range of up to 66ft.
*some of our articles have aff links. Please read our disclaimer on how we fund Exxponent.
