CUI Devices Wide Frequency Range MEMS Microphones feature a frequency range from 20Hz to 20,000Hz with analog output types. Top or bottom port versions are available in compact low-profile packages measuring as small as 2.75mm x 1.85mm x 0.90mm. With signal-to-noise ratios of 62dBA or 64dBA, sensitivity ratings of -38dB, and sensitivity tolerances as low as ±1dB, these models are an ideal solution for a range of portable consumer electronics.