The Rechargeable Smart Bark Control Collar is a versatile and high-tech solution for controlling your dog's barking behavior. With adjustable sensitivity levels and the option to control using vibration or static/shock methods, this collar is suitable for dogs of all sizes (S, M, and L). The digital display makes it easy to navigate and recharge the collar ensures long-lasting use without the need for constant battery replacements. Perfect for pet owners looking for a reliable and humane way to train their furry friends. Item is fully tested, works great and was used for years.