Pet Dog Training Shock Collar for 2 Dogs, Remote Control Pet Dog Training Collar -Waterproof and Rechargeable &ndash;Electronic Trainer with Static Shock and Vibration Provides a professional vibration with rechargeable remote control electric training collar. Correct your dogs individually with a shock and vibration or correct 2 dogs simultaneously with a vibration. Instructions state not to immerse receiver in water for a long period of time, and not to get the controller wet. Adjustable TPU strap, it will work for small, medium and large dogs weighing from 15 to 150 lbs. Rechargeable and waterproof receiver for 2 dogs Different colored belt(black and red ) for ease of training. Polyurethane (PU) construction makes the belt extremely durable, long lasting and lightweight