... .5mm 3.Driver Unit:10mm fashional newest MP3/MP4 earphones/earplug Product Specifications/Features : Speaker Size: φ15mm Impedance: 32Ω Sensitivity: ... : MP3/MP4, CD, radio, and other audio device. Characteristic: In-ear stype earphone-housing, with big, middle ,small size(any color ... other port Buyer Search : Earphone & Headphone Parts, headset, earphone, earplug, headphoneUpdate Date:2011-9-17 2:10:09