Smays 4-Conductor 3.5mm to Mic and Earphone Jack Audio Adapter Cable (7.8-Inches = 20 Centimeters, Black) Full gold-plated plug and high quality TPE cable (cable adopt only TPE, 3.5 plug head adopt PE material) Cable adopt CTIA standard Turns a 3.5mm combo headphone/microphone port into two distinct ports C one 3.5mm headphone jack and one 3.5mm microphone port For devices has a single plug (mic/audio like cell phones) but most decent PC/Gaming headsets come only with dual 3.5mm plugs (one for the microphone and the other for the sound).