How to setup1. Bury (very easy to bury， only 1/4" underground in a very thin line) or simply fix the wire on the yard fence.2. Plug in the power box.3. Connect the perimeter wire to the power box.4. Put the receiver collar on your dog.5. Train your dog by leading him around the perimeter. Let him experience the warning beeps & shock so he knows his boundaries.6. Sit back and ENJOY your trained dog.Pacage Includes: -1 * Indoor wall-mounted transmitter-1 * 12V Power plug (plug as picture shows)-1 * Adjustable receiver collar-1 * 6 Volt 4LR44 battery for collar-1 * 300 Meter Roll of fence Wire-20 *Training flags-4 * Screws-1 * User's manual