Dog Shock Collar - Waterproof, Rechargeable, Adjustable, Beep/Vibration/Shock Modes, Remote Control

Adjustable Dog Collar for Different Size Dogs. Nylon Dog Collar fits about 8 - 20" Necks. Good for dogs about 20 - 100 lbs. Extended and Multichannel Remote Control (only 1 remote included). 4 separate channels can be used to train up to 4 dogs at once when you purchase additional collar units (additional collars sold separately). About 500 feet remote control range. IPX7 Waterproof Dog Collar and LCD Backlit Display.