Overcomes the limitation of some laptop audio ports, by turning a single 4-position 3.5mm audio port into two distinct 3-position 3.5mm audio ports, allowing you to connect a microphone as well as external speakers. Note: While using this headphone splitter with PC applications; make sure that you have selected Microphone and Headphones options in Audio settings of the application. Note: Allows the use of older audio accessories with newer laptops, tablets and smartphones having one 3.5mm jack port Turns a 3.5mm combo headphone/microphone port into two distinct ports - one 3.5mm headphone jack and one 3.5mm microphone port . 3.5mm audio port Input: 3.5mm 4-pin Male x1 Output: 3.5mm 4-pin Female x2 Supports TRRS Microphone Easy to Carry Colour Blue Brand No Brand SKU 101032086_NP-1021564928 Model 1 Male to 2 Female