This hidden W-227b is among the most reliable, cost-efficient pet containment systems available today. A buried wire transmits a harmless radio signal. When you dog approaches the boundary, the signal causes the dog`s collar receiver to deliver a warning beep first. If your dog continues closer to the boundary, the system will issue a mild shock. If your dog continues further, the system will issue stronger shocks until your dog returns to within the boundary you have set up. Your dog will naturally seek to avoid correction, and is content staying within established boundaries Highlights: Pulsed proportional stimulus Progressive tone stimulus Variable field width control Audible and visual wire break indicators Speed detect anti-run through Built-lightning protection Multiple collar peration Up to 5000 aquare meter range(over 1.2 acre) Product Feture: Flexible Training Levels The receiver collar includes 7 easy to understand and adjust training levels plus an audible only feature to
