A stereo headphone withan adjustable leather-effect headband and a 19mm diameter dynamic microphone on a bendable PVC-sleeved boom. The 40mm diameter mylar speakers are mounted in black plastic shells with leather-effect foam-filled ear pads. The phones have 2.2m of flat cable terminated in a 3.5mm stereo plug for the ear phones and a 3.5mm mono plug for the microphone. The microphone is a low impedance dynamic type. HeadphonesImpedance32Omega plusmn15Rated power input30mWMaximum power input100mWFrequency response40Hz to 12kHzRightleft balance3dBTotal harmonic distortion3Sound pressure level92dB plusmn4dB1mW CNSMicrophoneImpedance200OmegaWeight100g without cable