- Converts a 3.5 mm connection into a 2.5 mm connection e.g. for connecting standard stereo headphones with an MP3 player or smartphone ,- Gold-plated plug with low contact resistance for secure signal transmission ,- Flexible cable adapter - Quality: Standard ,- Connection: 2.5 mm Jack Plug/3.5 mm Jack Socket ,- Equalizer: No ,- Fabric: No ,- Filter: No ,- Gold-Plated: Yes ,- Length: 0.06 m ,- Colour: White 2 years legal warranty only