Connector Type: Mini-Phone Stereo 3.5 Mm To Mini-Phone 3.5 Mm 4-Pole: Compatible Devices: Headphones, Pc Number Of Items: 1 Connect A 4-Position Headset To A Computer That Has Separate Microphone And Audio Ports Connect Your Newer Headsets (Audio &Amp; Microphone) To A Pc Or Laptop For Use With Voip Applications (Skype / Chat Programs) Compact Design For Maximum Portability A Great Solution To Have On Hand In Your Laptop Bag Headset Splitter Adapter Cable / 3.5Mm Headset Splitter