To take advantage of the full wideband audio that is offered with the 9600 phones, use the HIS Adapter Cable with your wideband headset. Quick Disconnect (QD) capability allows the headset to detach without losing the call. Product Type: Phone Cable Connector on first end: 1 x quick disconnect phone Connector on second end: 1 x male phone Device Supported: phone Compatibility: Plantronics 9600 Phones Conductor: copper Standard Warranty: two year