YCS Basics All Metal 1/8 Inch (3.5mm) Female To 1/4 Inch Male Stereo Headphone Adapter Rugged zinc alloy construction with gold plated connector Makes your favorite headphones or other devices compatible with most pro audio and home audio equipment! Accepts TRS (tip, ring, sleeve) plugs (2 black rings) -- Will not work with TRRS (tip, ring, ring, sleeve) plugs (3 black rings) This adapter is designed to work with headphones (TRS) and not with stereo headsets or headphones with built-in microphones (TRRS) 1 Year YCS Limited Warranty