MP3 earphone smile face earphone for Christmas gift!!!: 1,fashional design, 2.stereo,various color for mp3,mp4 ... player MP3 earphone smile face earphone for Christmas gift!!:Specification:1.Frequency response: 20-20000 Hz ac2.Sensitivity: 110 ... line, OFC 1.2 m Feature:1.Stylish design.2.Perfect fit on ear to enjoy for music.3.Various color ...