Mic and headphone combo: With one 3.5 mm male (TRRS) and two 3.5 mm female (TRS) connectors, the adapter transforms a 3.5 mm Audio output port into one 3.5 mm headset jack and one 3.5 mm mic port Keep in touch while traveling: This microphone and headphone Y splitter fits ideally into your laptop bag; it’s designed with travel in mind and is an ideal solution for mobile applications Keep your legacy equipment: Eliminate the cost of upgrading; this headset adapter enables you to use your older audio accessories with newer PCs and devices like your Ultrabook, smartphone or tablet Multiuse functionality: This 4 pin headphone and mic splitter cable can be used for connecting a separate headset and microphone combo to the audio port on your laptop, PC or controller Reliable support: ELKY offers a lifetime warranty and free lifetime technical support on this splitter and has been the choice of IT professionals