Anti Bark Collar - Barking Control Collar Super Sale on Anti-Shock collar. Humane - painless tone followed by shock only if barking persists Automatically increases tone and shock stimuli if barking persists Cure your dog of unwanted barking - fast. Effective on dogs from 10 lbs to 150 lbs Voice recognition feature to minimize triggering by other noises. 100% money back gurantee if not satisfied with the results. (Spray type collars can not be returned for a refund - Our collar can be returned - your satisfaction is 100% guaranteed)