The EF-4000 is an Invisible Dog Fence which enables you to keep one or more dogs safe in complete freedom within a perimeter that YOU define without the need of an ugly containment fence. The EF-4000 is the only dog fence on the market to allow you to vary both the correction distance and the warning distance independently.
State Of The Art Transmitter With 2 Adjustable Zones
Innovative, Fully Waterproof Collar With 8 Levels Of Static Correction
500 Feet Of Perimeter Wire and 50 Flags
Includes Energizer CR2 battery (6 months battery life)
Two Pairs Of Contact Points (Long And Short)
