... order welcome,competitive price,fast s monaural headset with microphone & splitter audio cable for iphone ipadDescriptions:-Call center headset with retractable head band.-Over the head ... .5mm stereo / RJJ plug Microphone specifications:-Dimensions: 6×5mm-Sensitivity: 60dB+/-3dB-Frequency Response: 20Hz-20,000Hz monaural headset with microphone & splitter audio cable for ...