Dogwidgets Advanced Electronic Anti No Bark Dog Training Tone and Vibration Collar No Shock(Very Humane, safe no pain) For Small, Medium and Large Dogs (6 - 100 Pounds Dogs). Adjustable sensitivity. STOPS BARKING SAFELY. Features strong warning sound and vibration and to eliminate excessive barking behaviors. SAFE AND EFFECTIVE. Very humane collar, 100% safe and no pain dog bark collar - Tone/Vibrate - only no shock. Will work up to 120 lbs dogs. Collar shuts off for 1 minute after the collar reaches the 7th correction to protect the dog. ADJUSTABLE ADVANCED ELECTRONIC BARK COLLAR. Throat vibration senor activation collar. Adjustable sensitivity from very low to very high to adjust to your dog's barking and environment. WORKS FOR ALL DOGS. Lightweight collar perfect for any dog size. BEST CUSTOMER SUPPORT. Fast customer email and phone support with 6 months replacement warranty. BUY WITH CONFIDENCE.