Dog Bark Collar Advanced Electronic Anti No Barking Control Training High Warning Sound and Electric Static Shock For Small Medium Large Pet Dogs IMPROVED BARK COLLAR VERSION. The Dogwidgets dog barking collar uses high pitch warning sound beeps and electric static shock to eliminate excessive barking behaviors. FITS AND WORKS FOR ALL DOG SIZES. Lightweight collar perfect for dogs from 20 to 100 pounds. UPDATED AND ADJUSTABLE ADVANCED ELECTRONIC DOG BARK COLLAR. Throat vibration sensor activates the collar. Adjustable sensitivity from very low to very high to adjust to your dog's barking and environment. AUTO SHUT OFF SAFETY FEATURE. Collar will turn off for 1 minute after the 7th correction to protect your dog from excessive correction and punishment 7 LEVELS OF CORRECTION PUNISHMENT. High quality electronic anti bark dog collar and sends harmless warning sound and shock to the dog whenever it barks. The stimulations repeat through 7 correction levels, the intensity gradually increases until the dog stops for thirty seconds. If the continuous stimulus reaches the 7 levels, then the collar will stop working for 1 minute to protect the dog.