The Aurelis series is the first microphone that has been specially developed for digital radio standards. In addition to classic communication, data applications of the digital radio can be integrated depending on the Aurelis variant. For example Information can be shown on a display or radio-specific applications can be controlled using freely programmable buttons on the hand-held microphone. Product design, product development, mechanical design, sample construction and prototype construction for a digital handheld microphone. Supervision of tool design, tool construction and checking of initial sample test reports.