U10P-S Plantronics QD Compatible Headset Cords - For Specific Phones ONLY For any Plantronics QD compatible headsets like their H/HW Series, VXI P Seires, Smith Corona P Series, Starkey P Series Will work with any manufactures brands that have the PLT QD, VXI P Series, Smith Corona P Series, Starkey PL Series, The One, Any PLT QD compatible headsets FOR SPECIFIC PHONE MODELS ONLY - is NOT the same as the polaris U10P , this is a U10P-S Cord Contact Headset World USA with any questions regarding compatibilityc Will NOT work on all phones - CHECK DESCRIPTION LISTED BELOW FOR SOME OF THE PHONE MODELS