1) frequency response: 20hz-20 khz 2) speaker impedance: 32é 3) driver unit: 10mm 4) rated power: 2mw 5) power handling capability: 10 mw 6) cable length: 1.30 m 7) sensitivity: 100db 8) microphone: 4.5*2.2mm-42db+/-3db 9) plug: 3.5mm stereo 10)ear bud made in metal material 11)it can make very high quality sound 12)compatible with mp3, mp4, ipod, iphone laptop, computer and other audio device 13)PU/PVC rubber for earphone wire 14)OFC copper material in line 15)Weight: 15g (with wire)
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