Greetings; I purchased this TZ-862 CONOVO underground dog fence system on Amazon for a new puppy, to keep her out of the garden/Koi pond. Decided to put up a steel garden fence instead. This is a complete system for one dog. Extra collars can be ordered if needed. The collar is rechargeable via any USB port, the controller requires an A/C outlet for the power supply. Comes with 200 meters of wire, one collar and all accessories. Paid $99, asking $50 in the Toledo area, or will ship on your dime. Please PM me with any questions.