QD (Quick Disconnect) to USB cable.
The cable is used to connect ADDASOUND QD series headset to PC with USB port.
Plug-and-play for easy set-up
Convenient call controls including mute, volume+ and volume –
Compatible with Microsoft® Windows 10, Windows 8, Windows 7, Vista®, XP, 2000 and Mac® OS X, etc.
Compatible with most softphones