Have had this short while really love way it performes and sounds. Tight unit with clean clear sound. DrMr2000 has a beautiful black one listed also. Mine has a fairly low 60,000 serial number. I have the external battery pack not shown. The remote has a interesting feature showing amount of tape from what end is left and of course the neat WALK MAN moving letters. There were only two models made each with a FM version the EX909 and FX909 and EX999 and FX999 thus a very rare beasty indeed. AgentOrange quoted this in a early post on the FX999.
"The EX/FX999 also use the dual head mechanism... together with the 909s make the only 4 Sony Walkman to have such a system... The original concept is to have two smaller and more efficient heads instead of one standard sized one in order to conserve power... at least that's how Sony marketed the concept..."

SONY WM-EX909 DUEL HEAD




SONY WM-EX909 DUEL HEAD

I have the same unit in black.