YCS Basics Mono Headset Adapter Cable for Mobile Phones And Gaming Systems One 3.5mm TRRS (Tip, Ring, Ring, Sleeve) 4 Conductor / 4 Pole male connector (3 black rings) One 2.5mm TRS (Tip, Ring, Sleeve) 3 Conductor / 3 Pole female connector (2 black rings) Adapter cable allows you to use a 2.5mm TRS office / mono headset with your mobile phones or mobile devices (e.g., laptops, tablets, smartphones, iPhone, Android) that use a single 3.5mm TRRS plug to make phone calls or VOIP/Skype calls Use chatting (voice) / mono / office headsets with current gaming controllers (e.g., PS4, Xbox One - 2nd generation) that use a 3.5mm TRRS plug (Note: Console settings may need to be changed; only for voice and not for game audio) Compatible with mono / office / chatting (voice) headsets that use a single 2.5mm TRS male connector