"Discourage unwanted, excessive barking from your favorite 4-legged buddy with the SportDOG NoBark SBC-8 Dog Training Collar. Easy-to-use, effective, and customizable, this training collar offers simple, but effective correction to discourage unwanted barking. Progressive Correction steadily increases the collar's response through its 8 levels of stimulation, with an automatic reset after 30 seconds of quiet. The SBC-8 also features SportDOG's Silent Partner bark-detection technology to filter out external noise and ensure your dog is only corrected when he or she barks. Designed to fit a wide range of dogs, this training collar fits dogs 8 lbs. and larger with neck sizes ranging from 5""-22"". Waterproof up to 25'. Runs on 6V battery that runs the collar unit up to 200 hours. Includes NoBark SBC-8 Collar unit, 3/4"" black collar strap, standard and long contact points, and operating guide.Manufacturer model #: SBC-8. Effective, customizable no bark dog collar system Progressive Correction operating mode - steady increase through collars 8 stimulation levels Silent Partner bark-detection technology - filters out external noise, only corrects your dog's barks Fits dogs 8 lbs. and larger with neck sizes ranging from 5""-22"" Waterproof Runs on 6V battery"