Features:Headsets Adapters: 2x3.5mm female to RJ9 modulars plugs convertor cable. Function: Connectings your own Analogs computer headsets with double 3.5mm plugs to your own phone headsets jacks with RJ9 plugs. Plugs-and-Use:Easy installation, plugs and use, convenient to use. Note: Do not work with Avaya9620C, Avaya9608, 7942, 7960.Crafted from ABS material, these cable offer a user friendly design suitable for integrating computer headsets with phone system.Suitable for office, call centers, or home environment, providing a reliable solution for integrating headsets into various devices. Specifications:Material:ABSColor:BlackLength:Approx.25cm/9.84in Note:Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color. Package includes:1xRJ9 Male to 3.5mm Cord