This sale is for a Invisible Fence Maxdog V5 dog collar receiver. I do not know any information on this unit. I don't know which series transmitter it require or what kind of battery model is needed. I does have a battery in it already, but I do not know if it's any good, it may need replaced. The unit is in fair condition. Does have lots of scratches around. Does not include collar strap. Comes exactly as pictured.
eBay