Dogwidgets DW-6 Rechargeable Remote Electronic Dog Training Shock Collar with Strong Vibration STOPS UNWANTED BAD BEHAVIORS. Features strong vibrate and shocks to eliminate all bad behaviors. SAFE AND EFFECTIVE. Very humane collar, strong vibration stops dog's bad behavior 99% of the time. NEW COMPACT DESIGN REMOTE CONTROL. 7 total buttons for vibrate and shocks, no need to toggle/switch buttons to deliver vibrations or shocks. FITS ALL DOGS. From 15 to 100 lbs with a collar size from 12 to 20 inches long. FAST TECHNICAL SUPPORT. Best customer support with 6 months replacement warranty.