Automatic Anti Bark Shock Training Collar, Geega Pet Warning Beep Electronic Static Shock Adjustable Stop Barking Collar with 7 Level Sensitivity Button Control for Large Medium Small Dog (Black) Automatic safe no bark dog collar with warning beep and electric static shock. Easy collapsible adjustable light weight black nylon electric shock dog bark collar for 10 to 120 pounds breeds with 7 to 25 inches neck; ideal for sport dog like Labrador Retriever, German Shepherd, Golden Retriever, Beagles, Bulldog and other breeds. Adjustable 7 level sensitivity button control automatic comfortable barking correction collar with beep sound and static shock intensity gradually increased; 1 minute pet protection mode once the training device continuing stimulus for 7 times; LED battery power indicator. Easy installation, function testing and verification bark free dog anti bark collar; mini, medium and big dog training collar for a no bark quiet indoor and outdoor environment; starting with warning beep till the louder beep and safe static shock. Not waterproof and not recommended for small puppy with less than 8 pounds; 30 days money back guarantee and 12 months warranty.