The TP16 fencing system is among the most reliable & cost-efficient pet containment systems available today.
A buried wire transmits a constant radio signal, which if approached by the collar will cause it to beep. The closer the collar gets to the barrier - the stronger the signal becomes. If the beeping is ignored the collar will then deliver a mild static correction, the system will issue stronger corrections until your dog returns within the boundary you have set up.
In time and your dog should naturally seek to avoid the barrier/retreat inwards from the fence after hearing the warning beeps.
1 Dog Set includes:
Rechargeable Collar includes: