Turns a 3.5mm combo headphone/microphone port into two distinct ports - one 3.5mm headphone jack and one 3.5mm microphone portAllows the use of older audio accessories with newer computers. This adapter is not a headphone splitter/Y-cable. It cannot be used to split the audio output to two separate sets of headphones or speakers.Combo Jack splitter (4-position 3.5mm to dual 3-position 3.5mm) is a headset Splitter Adapter featuring one 3.5mm Male (TRRS) and two 3.5mm (TRS) Female connectors, enabling you to add a mono microphone input, as well as a stereo output to your PC or Laptop, through a single 3.5mm audio port. It can turn the combo port into two distinct ports: one 3.5mm headphone jack and one 3.5mm microphone portLightweight, yet sturdy design that can easily be plugged in when requiredPackage Included: 1x Headset SplitterTurns A 3.5mm Combo Headphone/Microphone Port Into Two Distinct PortsThe Headphone/Microphone Combo Jack splitter (4-position 3.5mm to dual 3-position 3.5mm) is a headset Splitter Adapter featuring one 3.5mm Male (TRRS) and two 3.5mm (TRS) Female connectors, enabling you to add a mono microphone input, as well as a stereo output to your PC or Laptop, through a single 3.5mm audio port. It can turn the combo port into two distinct ports: one 3.5mm headphone jack and one 3.5mm microphone port.