BEBONCOOL 3.5mm 4-Pin to 2x 3-Pin 3.5mm Headset Splitter Adapter M/F 4-Pin 3.5mm to dual 3-pin 3.5mm Headset Splitter Adapter features one 3.5mm Male and two 3.5mm Female connectors. This adapter turns A 3.5mm Combo Headphone/Microphone Port Into Two Distinct Ports 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. Lightweight, yet sturdy design that can easily be plugged in when required Use a higher quality headset with your iPhone or smartphone Note: it is a splitter, not a combiner