Static Shock Collar Dual Anti Bark Device An excellent bark prevention control collar that uses a dual system of high-frequency sound waves and mild electrical shock stimulation that is activated when the collar senses the vibration from the dog's bark. The shock is just like the one you sometimes get when you step out of the car. Think of it a bit like the surprise you get when a family member jumps out from behind a door with a hearty 'boo!' The idea is that with these mild shocks, your pooch will learn an association between every time he barks and the discomfort from the electrical and ultrasound stimulations, thus helping to promote better and quieter behaviour. This product also comes with a battery, so that it is ready to use as soon as it arrives ! Features Anti-barking system that uses high-frequency sound waves and electrical shock stimulation Vibration bark sensor - detects when your dog is barking, and then activates the dual stimulations Compact and lightweight - will fit snugly to your dog Comes with a standard 6V battery - your control collar will be ready to use as soon as it arrives Effective on dogs from 2kg to 60kg High quality nylon strap adjusts from 5 to 21 inches Weatherproof unit - This unit is rain resistant so is perfect for using in any weather The Electrical Impulse Bark Control Collar is a brilliant aid in the struggle with a noisy dog . It uses a dual system of high-frequency sound waves and a mild electrical shock to provide a stimulation every time your dog barks. It is set off by a vibration sensor that is built in to the collar, which detects your dog's bark and then sets off the stimulation. This collar is effective on dogs weighing from 2kg up to 60kg, with a high quality nylon strap that can adjust from 5 to 21 inches. A compact and lightweight item this product also comes with a battery, so that you are able to start using it straightaway. Specifications Weight 65g Click here to view the instructions