headphone for iphone 1.material:ABS. 2.good quality and lower price. 3.CEand RoHS compliant. 4.lead time:15 days. Driver Unit: Φ40mmImpedance :32ohmsSensitivity:104±2dB S.P.L.at1KHzFrequency Response:20Hz-20,000HzMax. Input Power:50mWCord Length:1500+/-50mmPlug Type:3.5mm StereoHeadphone design, simple and fashion,wear comfortable.New design,beautiful apperance,durablePerfect use for ipod,MP3,MP4 ...