Stereo earphone 3.5mm DC plug ABS plastical, High quality CE, FCC and ROHS certificate KA-855 In ear Stereo Earphone:Speaker: 10mm 6U32R, Case: ABS plasticImpedance: 32 OhmsSensitivity: 95dBFrequency response: 20Hz-20K HzPlug: 3.5mmCable: 1.2m Hi End in-ear stereo earphone for iPhone, iPad, MP3, PDA, Laptop,etc