Aetertek At-216s Rechargeable Dog Trainer Submersible Dog Shock Collar 550m Remote Dog Pet Electric Shock Control 3 Dog Training Anti Bark Shock Collar 100% Waterproof Dog Bark Collar Up to 3 dogs training, can control dogs separately ollar use the most advanced design, electromagnetic induction switch solution, on the power ON/OFF switch to ensure unlimited accurate switch, more convenient and reliable. Dog training collar with Vibration, Beep tone, 0-7 adjustable levels of Shock correction mode Rechargeable and 100% waterproof collar receiver, you dog will be happy to have it for swimming Remote control dog trainer range up to 600yards (approx. 550 meters) for all dog size from 15-150lbs Aetertek brand carry and go bag, convenient for package 1 year warranty