Type: Open -Air, Dynamic Driver Unit:φ40mm Mylar Impedance: 32 Ohm +(-) 10% Sensitivity: 110dB +(-) 3dB Frequency response: 20-20,000Hz Microphone: condenser type Sensitivity: 0dB=1V/Pa at 1KHz-52dB Cord Length: 2.3m +(-) 10% Plug: Gold-plated 3.5mm Stereo Plug