Sennheiser KBL 2 - HD 438, HD 439 (archived) - - Connection cable, 3 m length
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Sennheiser HD 439 by MicroAlex on DeviantArt
534443 Connecting main cable (3m) for Sennheiser headphones HD-438 HD- – ArtAudioParts
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Audio Cable with mic For Sennheiser HD438 HD439 HD451 HD461G/i HD471i headphones | eBay
Featured Review: Sennheiser HD 439 Over Ear Headphones
Amazon.com: Earphone Audio Nylon Cable Headphone Replacement Parts for Sennheiser HD438/439/451 HD461G/i HD471i : Electronics
Sennheiser HD 439 Premium Over-Ear Headphones w/ Cables