Aetertek AT-218 Submersible Remote 2 Dog Pet Shock Training Collar Trainer With Auto Anti Bark Feature This is Aetertek 2016 New product 218C dog shock collar. PLEASE NOTE IT IS NOT AT218 MODEL.218 and 218C are totally different. Submersible (waterproof) dog trainer, can be immersed in water when swim As 1 or 2 dog training shock collar, this list is for 2 dogs training system Vibrate, 0-10 level of Shock, Beep. with LCD display. Use the most advanced design, electromagnetic induction switch solution, on the power ON/OFF switch to ensure unlimited accurate switch, more convenient and reliable. Remote control to 600 yard (approx. 550 meter) for all dog size from 15-150lbs CE,ROHS,FCC Approved. 1 Year warranty legally use the 915 MHz frequency segment.