Wired and Wireless Conference Microphone Systems Language Distribution for Multi-National Conferences for Head's of State, Corporate Meetings, Events and Rater Training. 35 + years Global Experience Global Event Technology and Interpretation Services Large inventory of BOSCH Congress equipment in the United States, Including Wired & Wireless Delegate Microphones and Digital InfraRed Systems, We offer a full service Global Solution for Conference and Event Planners.