Plantronics Compatible U10P Standard RJ11 Connection Lead Plantronics Compatible U10P Standard RJ11 Connection Lead - Compatible With All Plantronics, JPL & Project Telecom Quick Disconnect (QD) Terminating Corded Headsets Fits Most Standard RJ11 Telephone Headset Sockets QD to RJ11 Headset Lead - For Use with Telephones that have an RJ11 Port ***Please note this is not a USB lead, it is a QD to RJ11 Headset lead, which is for use with telephones that have an RJ11 port***