genius hs-02b headphone with microphone 3.5 mm connector .
mfg genius . mfg part number hs-02b . headset with microphone yes . volume control yes . frequency response 20hz - 20khz . sensitivity 76db - - 4db . connector 3.5 mm . ear coupling supra-aural . microphone impedance 2k ohm . microphone frequency response 80hz to 16khz . microphone sensitivity -58 db 1 4db . adjustable microphone height . on-line volume control . great for pc audio or mp3 cd music . great for internet chat .