Esky Dog Training Collar Waterproof 330 Yard LCD Backlight Remote Control Dog Training Shock Collar With blue backlight, convenient and easy to read large LCD digital display It can provides a professional 100 level shock and 100 level vibration This collar comes with advanced RF technology boosts range up to 300m, No harm for your dog Easy to operate,Separate stimulation/vibration/tone/light function button control High quality with 1 Year Replacement