Lost or broke your audio cable? No problem! This replacement cable uses a TPE rubberized cable construction that's extra resistant to wear and tear, and tangle-free, with gold-plated dual 2 pin connectors to 4 pin XLR for optimal sound. This is a third party compatible cable from Brainwavz, and is compatible with Sennheiser HD600, HD650, HD660s & HD580 headsets only - not compatible with any other brand or model.