Remax metallic universal performance stereo headset with microphone is standard headsets for iPhone,Samsung handsets and other mobile handsets.It has a standard 3.5mm stereo plug and 1.2 long tangle-free flexible cord.There is a in-line control with microphone for call-handling.Now you can listen to your favorite songs and music without missing a call.The earphone is base-driven and has noise reducing in-ear design.It is comfortable to wear and has rich bass.The base of earphone is made of electroplated metal to give it solid sound.The earphone is packaged in a delux metal box.It is a perfect gift for all occasions. Driver Diameter: 10mm; Frequency Response: 20Hz--20kHz; Impedance: 16±10% Ω; Sensitivity (SPL): 96±3db; Rated Power: 5mW; Plug: ¢3.5mm; Material: Metal Plating+ABS+TPE; Cord Length: 1.2meters;