With diameters as compact as 3 mm and depths as low as 1 mm, CUI’s diverse line of electret condenser microphones offers a range of configurations to meet your design needs. Our microphones are available with omnidirectional, unidirectional and noise cancelling directivity and offer terminal, pin and wire termination types. Sensitivities range from -54 up to -24 dB while signal to noise ratios range from 56 up to 72 dBA. Our electret condenser microphones also feature operating voltages of 1.5, 2, 3 and 4.5 Vdc as well as operating frequencies up to 20,000 Hz, making them ideal for a variety of consumer and household electronics, medical devices and industrial applications. To deal with moisture and environmental contaminants several ECM models also carry Ingress Protection (IP) ratings up to IP67.