4.4mm Balanced Audio Cable for HD 559/HD 569/HD 599/HD 560 S/HD 620 S

One (1) Genuine Sennheiser 4.4mm to 2.5mm balanced cable, compatible with: HD 559, HD 569, HD 599, HD 599 SE, HD 560 S, HD 620 S. 

A twist-lock mechanism keeps your cable securely in place to avoid inadvertent separation of the from your HD-Series headphones.