... Notebook computer earphone, etc *with microphone *double plugs *handsfree, in-ear Computer earphones, Laptop earphones, Notebook computer earphones, PC earphones, in-ear, handsfree, dual-plugs ( ... Frequency Response: 20Hz-20 kHz2) Speaker Impedance: 32Ω±15%3) Speaker: diaphragm 6U, diameter 10mm 4) Output Power: ... Cord Length: diameter 1.3mm, 2.0M7) Jack: 3.5mm8) Microphone: 4.5*2.2mm-42db+/-3db8) ...