Detailed Product Description Stereo Earphone for iPod,MP3 & MP4 Player, computer and mobile;fashionable earphone design , with good sound quality , ... give you a magic music world ,perfect use for mp3, mp4 ,ipod Driver Units:10 mm Frequency Range: 18-23.000Hz ... Ohm Shell Material: Metal Diaphragm: Nylon (white & black two-tone color) Cord Length(approx): 4ft (1.2m) Jack: 3.5mm, stereo ...