genius hs-02n foldable rear band headphone with microphone .
mfg genius . mfg part number hs-02n . headphone frequency response 20hz to 20khz . impedance 32 ohms 1 khz . microphone frequency response 20hz to 20khz . impedance 2.2 kohms . microphone sensitivity -58 db - 3db . excellent for internet foldable headset communication with provides great for comfort volume control for easy carry and storage headset includes microphone .