Sennheiser HD 25-13-II mit 3m geradem OFC-Kabel... | music store
Sennheiser CH 650 S - - High-end cable for HD 600 and HD 650 headphones, optimally matched to HDVD 800 and HDVA 600 headphone amplifiers.
Sennheiser HD 600/650/660S Cable 6.3mm/3.5mm/balanced 4-pin - Etsy Singapore
Amazon.com: Audio Cable Replacement with in-Line Mic and Remote Volume Control - Compatible with Sennheiser HD525 HD545 HD565 HD580 HD600 HD650 Headphone and Compatible with Samsung Galaxy Huawei Android : Electronics