The CMC-9745-37L100 is an electret condenser microphone designed for audio capture applications requiring unidirectional pickup and high signal quality. It features a sensitivity of -37 dB (typical) at 1 kHz and 1 Pa, with an output impedance of 2.0 kO (typical), operating at a standard voltage of 1.5 Vdc and supporting up to 9 Vdc maximum. The microphone delivers a signal-to-noise ratio of 72 dBA and operates across a frequency range of 100 Hz to 12 kHz, with a compact cylindrical design measuring Ø9.7 × 4.5 mm and weighing approximately 1 gram. Its 100 mm lead wires (UL1571 LF 30 AWG) and aluminum construction make it suitable for portable audio devices, voice recording, telecommunications, and consumer electronics where space and power efficiency are important.