Flexzion Dog Training Collar Remote Control 330 Yard 16 Level Vibra Electronic Waterproof Device with Safe Beep Vibration Shock for Large Medium Pet Battery Operated Remote dog training collar boosts range up to 330 yards, water-resistant collar receiver and transmitter Separate buttons for collar tone, vibration and shock corrections. Just press the button and you can training the dog directly 16 levels of static shock and vibration stimulation. Water resistant design to ensure usage in rainy days Uses 4 standard AAA batteries (batteries included). LED lights on collar flash to indicate low battery Remote control with a wrist belt and blue backlight screen for night using. Dog E-collar fits all dogs. From 25 to 100 lbs with a TPU collar size from 11 to 22 inches long