Berucci&trade; Dog Bark Terminator Anti Bark Training Shock Collar for Dogs 5 Pounds and Up Tthe Most Effective Anti-Bark No-Bark Dog Training Shock Adjustable Collar That You Can Train Your Dog With Automatically Increases Tone And Shock Stimuli As Barking Persists Water Resistant, Rain And Snow Will Not Affect Operation Purchase includes 1) One Bark Stop Control Collar 2) One Adjustable Strap 3) One 6v Battery 4) Instructions Berucci is a trademarks of A & S Global, Inc