genius hs-04a full-size stereo headset and microphone .
mfr genius . mfr part number hs-04a . frequency response 20hz - 20khz . impedance 32 ohms - 20 . sensitivity 112db - 3db . frequency response 50hz - 20khz . impedance 2.2 k ohms . sensitivity -60 - 4db . cord length 200 cm . stereo jack yes . gold plated 1 4 adapter included . volumn control yes .