The electronic invisible fence Dogtrace d--fence, consisting of the transmitter unit, the antenna wire and the receiver attached to a collar wearing by the dog, is a modern, safe, reliable, and highly effective system enabling you to define the boundaries of a safe play area for your dog (such as your garden) without the risk of escaping. The antenna wire carries a signal generated by the transmitter unit. If your dog, wearing a receiver collar, approaches the antenna wire, the receiver starts to emit warning beep sounds (warning zone) followed by stimulation impulses together with the beep sounds (correction zone). It is possible to easily adjust the width of both zones and the intensity of the stimulation. Thanks to the ergonomic design and low weight of the receiver, it is suitable for all dog breeds and sizes.