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Vesper is the leader in piezoelectric MEMS micrphones for consumer applications. Vesper was founded to commercialize a revolutionary approach to MEMS microphones developed by co-founders Bobby Littrell and Karl Grosh at the University of Michigan. This superior microphone design aims to bring studio quality acoustics into handheld devices. Vesper`s novel piezoelectric transducer design, can achieve unparalleled acoustic performance. Because piezoelectric structures only require a single active membrane layer, they are not affected by squeeze film damping, the dominant noise source in capacitive microphones. Our structures higher SNR, better matching and a rugged waterproof ultra-small form factor.
Marshall Wireless is a Eureka, MO-based company in the Telecommunications sector.
Aquis Communications Group is a Yorktown, VA-based company in the Telecommunications sector.
Mastec is a Ontario, CA-based company in the Telecommunications sector.
DDS Wireless International Inc. was founded in 1987 as Digital Dispatch Systems Inc. and was renamed to its present name after the acquisitions of Stratagen Systems Inc. and MobiSoft Oy in 2008 to better represent the diverse and global nature of our business. From November 2003 to June 2014 DDS was listed on the Toronto Stock exchange but is now a private company.