Sennheiser CH 650 S XLR Cable For HD 660 HD 650 and 600 Headphones water resistant the M4U TW1 allows the

the M4U TW1 allows the user to answer phone calls or control their music without ever referring to their phone

All in all

This is still a significant difference between most stock cables

improved version of the acclaimed HP-A3

streamer Musicians

Sennheiser CH 650 S XLR Cable For HD 660 HD 650 and 600 Headphones water resistant the M4U TW1 allows theProduct Highlights Connects HD 600 & 650 to HDVA 500 Amp Oxygen Free Copper 4 Pin XLR to 2 Mini Plugs The CH 650 S Cable For HD 600 and 650 Headphones from Sennheiser is designed to provide an optimized connection between the HD 600 and 650 headphones and the HDVA 500 headphone amplifier. The cable features oxygen free copper construction with gold plated contacts.