W tech , Innovative Waved OF IT, USB HEADSET WITH MIC speaker
dimentsion 40 mmm, speaker impedance 320+/-15%,frequency response
20-20.000Hz,sensitive 94db spl at 1 Khz,Omni direction. standared
operatin voltage 2 v, microphone unit 6X5mm+/- 2db dia electronic
contenser plug usb cand cable length 2 metre
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