Dog Training Collar With Remote Shock Vibration E-Collar For Small Medium Large Dogs Rechargeable Pet Trainer Remote dog training collar features strong vibration and electric static shock to eliminate all bad behavior. Simple and effective method. Very humane dog trainer, strong vibration stops dog's bad behaviors 99% of the time. Simple design remote control. 7 buttons for vibration and shock, no need to toggle or switch buttons to deliver vibrations and shocks. Dog shock collar fits small medium large dogs from 6 to 100 lbs with a collar size from 6 to 24 inches long. 600 feet range for long range training. Rechargeable receiver, no need to buy batteries for the collar receiver.