The U.S. Army TMDE Activity requires one Lab Standard Microphone System (brand name or equivalent) to replace three damaged standards essential for reciprocity calibration in its acoustics lab, preventing a potential shutdown. The system must include specific models (4180 and 4160 microphones), calibration services, cables, and shipping. Performance location is Redstone Arsenal, Alabama. No budget amount is specified. No submission or bid timelines are provided.