New Old Stock, These are a several years old but never out of the package or used in any way

Unidirectional cardioid dynamic microphone featuring a large 1.125" diaphragm and an internal rubber element suspension system for reducing undesirable noise from handling or touching the microphone. 180 degree rear rejection cardioid
response. Excellent articulation across the specified frequency response with a rise in response to match the voice characteristics of speech. Output is tailored to rise from 500Hz, crossing 1kHz up to 4kHz, exaggerating the microphone
output frequency response of these vocal frequencies. Resulting in a clear, well-articulated transmitted audio reproduction of your voice.

Element Type: Dynamic

Frequency Response: 40 Hz - 16 kHz

Pattern / Directivity: Cardioid / Uni-directional

Impedance: 600 ohms

Sensitivity: -51.5 (+/-3) dB (0 dB = 1V/PA) @1 kHz

Finish: Matte black

Supplied with a 3 pin XLR to 1/8" mono cable, suitable for use with the DMS-1 PTT base or an INRAD M-series mic jack adapter