Logitech H110 Computer Headset (GH₵195, New) in Tesano, Accra, Greater Accra. For computers that utilize separate 3.5 mm microphone-in and audio-out ports. simple and effective for everyday use and compatible with most operating systems and platforms. get just what you need to hear and be heard clearly. input impedance: 32 ohms sensitivity (headphone): 100db +/-3db sensitivity (microphone): -58dbv/μbar, -38dbv/pa +/-4db frequency response (headset): 20hz - 20khz frequency response (microphone): 100hz - 16khz cable length