... earphone for iphone,MP3,MP4,PC 1,CE, FCC ,RoHS compliant 2,OEM & ODM 3,Top sound quality 4,MOQ:5000 ... . Powerful magnet systems and lightweight diaphragm to provide high-quality sound7. Powerful bass and increased signal levels for ... Impedance32ohmSensitivity-100dBmFrequence range 20-2khzFunctionstereoWiresTPE cableUsageIpod,Ipone,MP3,MP5,CertificateCE,Rohs,FCC skull earphone for iphone,MP3,MP4,PC