For -Sennheiser earphones HD25-sp/HD222/HD224/HD230/HD250/HD250 Linear II/HD414/HD414 SL/HD420/HD420 SL/HD425/HD430/HD440 II/HD442 II/HD450 II/HD480 Classic/HD480 CL-II/HD480 II/HD490 II/HD520/HD520 II/HD530/HD530 II/HD540/HD540 II/HD560/HD560 II earphones.
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