*mobile phone earphone/cell phone earphone *apply to 3G mobile phone, iphone *handsfree *in-ear, 5 colors *CE,FCC,RoHS Mobile phone earphones, mobile phone accessory, 3G mobile phone earphones,cell phone earphones, handsfree, in-earspecially apply to iphone (DT-M3G) *Feature: 1) Frequency Response: 20Hz-20 kHz2) Speaker Impedance: 32Ω±15%3) Speaker: diaphragm 6U, diameter 10mm4) Output Power: ...