In-Ground Radio Fence System
The PetSafe In-Ground Radio Fence System keeps your dog in a safe area where there are no physical fences to set a boundary.
A radio signal travels from the fence transmitter through a buried wire, marking the boundaries that you wish to set for your dog. Your dog wears a receiver collar that detects the signal of the boundary. As your dog approaches the boundary, the receiver on the collar issues a warning tone. If he approaches further, he receives a safe but startling static correction. While it is harmless the correction will persuade him to stay in the containment area that you have established. Boundary flags are included and are a temporary visual aid for you pet and can be removed after training.
The PetSafe In-Ground Fence System has been proven safe, comfortable and effective on pets over 3.6kg.
Extra collars available here