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Replacement Upgrade Bluetooth Audio Cable Cord Line with Remote and Mic for Sennheiser IE8 IE80 IE8i Earphone Headphone Headset|cable upgrade|headphones linecable headphone - AliExpress
Price history & Review on Bluetooth 4.1 CSR8645 Aptx Handsfree Wired Cable Detachable Connector with Microphone for Sennheiser IE80 IE8 IE80I Headphone | AliExpress Seller - Xest Store | Alitools.io
Sennheiser IE 6, IE 7 and IE 8 Professional headphone series