Good for professional trainers and first-time dog parents 4 training modes: continuous shock, 1 sec shock, vibration, and a beep trainer with 8 adjustable levels Waterproof collar with remote control range up to 1100 yards, good for all dog breeds from 10-140 lbs Blind operation design for easy and effective dog training without even looking at the remote 1-year replacement warranty and 24/7 customer support