◆Directivity: Uni-directional◆Frequency Response: 20Hz-20kHz◆Sensitivity: -42dB+/-2dB (0dB=1V/Pa at 1kHz)◆Maximum SPL: 125dB◆S/N Ratio: 66dB◆Output impedance: 680Ω 65%(0dB=1V/Pa dl 1KHz)◆Voltage: 5V◆Material: Metal