Best Introductory System On The Market Water Resistant, Battery Replaceable Collar Receiver Contain Up To 5 Acres Audible Warning Tone Great For Small To Medium Dogs Progressive Correction And Run-Through Prevention Life Time Limited Warranty

Smart Dog® In-Ground Pet Fencing Systems Set The Standard For Results You Can Trust. Not A Rocket Scientist? Don’T Sweat It—Installation Is A Snap In Only Three Basic Steps. Smart Dog Systems Consist Of A Buried Yard Wire Connected To An Indoor Radio Transmitter. When The Dog Approaches The Wire, A Special Collar Worn Around His Neck Delivers A Brief, Totally Harmless Correction That Discourages Him From Crossing The Boundary. Corrections Typically Become Less Frequent As The Dog Learns His New Limits.