The 2 Pack Rechargeable Dog Bark Collar is an anti-barking collar designed for dogs of all sizes, from large to small. With 5 sensitivity levels, this collar allows for customizable settings to effectively train your furry companion to stop barking. Its rechargeable feature ensures long-lasting use without the need for constant battery replacements. The stylish color options make it a fashionable accessory for your pet while effectively addressing any barking issues.