4-pins 3.5mm jack to dual 3.5mm Mic/Headphone splitter adapter Convert 4 poles 3.5mm (1/8") stereo headphone with mic to dual 3.5mm (1/8") PC Mic/Headphone connector Gold-plated connectors to ensure smooth, corrosion-free connections Slim Tangle Free Flat Cable Design Use your favorite 3.5mm smartphone headset with your Laptop or PC Works with most of smartphone headset with mic, iPhone, samsung, LG, HTC etc. stereo headsets