Product descriptions: EASY-TO-USE: This dog anti bark shock collar worked with a replaceable 6-volt battery. Simply slip it around your dog's neck and the system will automatically work.
Features: This is a much more humane way to train your dog The bark terminator is controlled by a microprocessor which distinguishes your dog's bark from other environmental noises and automatically delivers sound and shock stimuli after each bark. The output level of sound and shock is increased gradually as barking. Giving your pet plenty of warning before it becomes painful. The bark terminator's unique pattern of increasing sound and shock quickly teaches your pet that it is its own bark that is causing the discomfort. A humane approach to bark controlling.
Specifications: Power: 6 Volt Alkaline Battery(Not included) Standard 6 volt size is 2/3 AA Size of the bark terminator:68 x 35 x 29 mm Color of the bark terminator: Black Package Content: 1 x Bark Terminator 1 x LED