... OEM flat cable metal earphonesMetallic finish in-ear silicon plug earphone for MP3,IPAD,IPOD,PHONES1).Speaker Unit: 9mm2).Impedance: ... Frequency Response: 20Hz-20KHz5).Wire: 110cm6).Plug: Silicon7).Function: stereo super-bass, with volume controlPacking Information: Unit Package:Anti- ... metal earphones Metallic finish in-ear silicon plug earphone for MP3,IPAD,IPOD,PHONES flat cable metal earphones