ADVANTAGES OF THE FENCE LINE: The electronic pet fence is invisible, and the electronic dog fence does not need to take up space. Using magnetic field induction technology, you can define an area in square miles that your dog cannot reach within a radius. It can also effectively ensure that your pet cannot cross this area at will. or 227 or 227B using high quality material jackets and durable conductor wires. It is highly resistant to moisture, chemicals, abrasion, cutting and stretching, is not easily broken, and has a wide range of uses. Length of 300m or 984ft: the dog fence wire is long enough to provide sufficient length for the underground fence system. These durable single-core coils are buried underground, do not take up space, do not spoil the appearance and give the dog more freedom. It also works on the ground, using garden staples to attach or join existing traditional fencing. PROGRESSIVE TONE STIMULATION: When the dog approaches the boundary, the first warning tone sounds. As you get closer, the system will emit a slight nudge. The intensity of the vibrations depends on the distance between the dog and the boundary line. The closer the dog is to the boundary line, the higher the intensity of the vibrations, but this will have no harmful effects on your pet. Versatile: Fan Guoguang Pet electric fence line control, you can adjust the transmitter button to adjust the size, which is convenient to use Buried wire is damaged and the wire damage indicator emits an audible warning and flashing light, but the fence reel is designed to meet all aspects of performance and provide years of dependable reliability. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store