Features: Features: 1) Mic type: 9 x 7mm 2) Impedance: maximum 2.2K 3) Sensitivity: -58db ?2db (0db=1V/pa) 4) Directivity: omni directional 5) S/N ratio: > 60dB 6) Sensitivity reduction: within -3dB at 1.5V 7) Mic frequency range: 30Hz-16,000Hz 8) Speaker: 40mm 9) Sensitivity: 108dB SP.L at 1kHz 10) Speak frequency response: 20Hz-20,000Hz 11) Impedance: 32 12) Rated power: 100mw 13) Power capability: 1000mw 14) Cord length: about 2.5m 15) Plug type: 3.5mm stereo