523876 is a genuine Sennheiser spare part.
It suits a variety of HD25 headphones (not the ‘SP’ or budget version).
This spare cable for HD25 is steel, and is approx 2m in length.
Clearly marked L & R (with colour coding) ends allow for quick and easy replacement with your existing heapdhones.
Molded 3.5mm threaded straight jack plug (designed to specifically replace your HD25 cable).
Don’t forget – you may to purchase the very handy 543684 screw-type 3.5mm socket to 6.35mm jack adapter if you’ve lost or misplaced your old one. It is sold separately!