This is a connection cord that converts the terminal of your existing headphones to a USB Type-C 3.5mm stereo mini plug. Also supports microphones. You can also use phone calls by connecting the earphone microphone. Please be aware that depending on your monitor settings, the color of the actual product may differ slightly from that of the product. Compatible Models: (as of May 2018) [Docomo] SO-03K (Xperia XZ2) SO-05K (Xperia XZ2 Compact) [au] SOV37 (Xperia XZ2) [Softbank] Xperia XZ2 (MVNO Model] HUAWEI P20