You lose your cord. Or it gets damaged. Then you’re left with a headset that doesn’t work - or just half the functionality of what you paid for.
The Replacement Cord for DS-8V is designed to replace a lost or damaged cord that operates the DS-8V Series headsets with compatible 3.5mm plug connections.
With dual connections, the replacement cord can operate both the audio and mic functions of the headset. This gives you greater flexibility and is especially handy if you work in an environment where swapping your headset between computers is common practice.