Vintage GI order Joe Inter-Com Telephone Set

Product Name: Vintage GI order Joe Inter-Com Telephone Set
Comes in the original box (not in perfect condition, please look at all pics) and packaging.  No instructions. Batteries not included. Includes original 30ft extension cord to connect the phones. Both sets are in very nice cosmetic condition but do not work properly.  Battery compartments on both phones are in pristine condition.  Both phones light up and buzz but you can not talk on them. One hand receiver has something loose in it. Box is in ok shape for its age but does have wear and a bit of clear tape on two corners.  Plastic order window is coming loose.