The Andrea DA-350 is a linear multi-element array microphone with Digital Signal Processing (DSP) circuitry contained within a single microphone housing. The DA-350 is ideal for achieving superior voice intelligibility and accuracy of Automatic Speech Recognition (ASR) system performance in high noise environments. The microphone"s patented Digital Super Directional Array (DSDA) adaptive beam forming algorithm technology achieves focused sensitivity, thus canceling noises outside the desired listening direction. The microphone also incorporates Andreas" patented PureAudio noise reduction algorithm for eliminating repetitive and defused noise within the desired speech signal. For Automotive applications, the DA-350 comes with mounting clips designed to attach the microphone to the sun visor or windshield molding, unobtrusive from the drivers vision while enabling hands-free far-field placement. More Information Here [1] Links: ------ [1] http://www.andreaelectronics.com/pdf_files/ProductSpecs/DA350SpecSheet2.pdf