CP0208R Features 3.5 mm plug in-ear style stereo earphone Allows you to conveniently enjoy music Compatible with all digital devices containing a 3.5mm audio port General Specs Brand & Model GENIPU GNP-82   Type In-ear earphone Microphone N/A Sound Stereo Frequency Response 17-21000Hz Impedance 32 ohm Plug Standard 3.5 mm  Cable Length 1.2m Compatibilities MP3/MP4 Player， PC， cell phones， etc.