1. VT-QD10008, with build in phone funciton
2. Coiled PVC or PU cable
3. Length 2.0 meter
4. Extended lines, much convenience
5. Built in phone function: mute and volume control
6. Three QD connector,one plug connects to desk phone or PC, the other two connect to headsets 7.This cable allows two users to achieve functions off by one adapter