SONY TCM-131 CASSETTE-CORDER, 

RARE VINTAGE MODEL, WORKING ORDER, TESTED, NO CORROSION OF BATTERY TERMINALS WHATSOEVER !! 

Overall excellent, Works fine. I've owned this for decades. A few times in the past, after unplugging the headphone plug the speaker would not immediately re-connect. A gentle wiggle of the plug before pulling it out would resolve the issue. Because this type of problem is unpredictable, it's being sold for spares and repair.