The P10 Plug Prong Adapter from Plantronics works with your choice of Plantronics headsets. Just plug the P10 adapter into your operator console, PBX, or ACD, then plug in your headset. The P10 delivers remarkable sound quality and ease of use. Its volume and automatic gain controls lets you adjust incoming calls to a listening level that is comfortable for you. It comes with handy quick disconnect feature and 10' coil cord.