Wide Control Range - adopts improved signal transmission technology which provides up to 800 Yards range of remote control (wider than other 330 yards). Get Better Obedience - 4 training modes for option (Beep /Vibration / Electrostatic Shock/Automation), you can choose the suitable mode to train your dog according to its nature and various behaviors, eg. Beep bad behavior, vibration at frequent barks or shock at aggression Adjustable Vibration & Shock Intensity - the mode of vibration and electrostatic shock with 7 level adjustable intensity which can be set according to of different sizes of dogs: small, medium and large from 15lbs to 100lbs. Portable Remote Control - unique design of compact size indoor antenna within easy reach, 0.5 inch ultra thick, easily portable or placed in pocket, purse or backpack, more convenient for your dog training outdoor