Many headsets for smartphones connect to the phone’s 4-pin combined audio input and output. A PC typically has two sockets: an audio output and a microphone input. This adapter converts the single connector on headsets to a dual connector for your PC, allowing you to use your phone’s headset with your PC.   Use your smartphone’s headset with your PC. Save the cost of an extra headset.   Dimensions Product (Package) Height 16.7 cm Width 7 cm Depth 4 cm Weight 70 g