TCI TACT-MIC Urban MBITR, Maritime MBITR, PRC-152, PRC-150 and PRC-117 Remote Speaker Microphones. The Urban version is compatible with Thales PRC-148(v)2 and (v)4 or Thales Maritime MBITR with Thales 3600190-1 FILL Adapter. The TACT-MIC with the maritime 10-pin connector is compatible with Thales PRC-148(v)1 and (v)3. Shielded and filtered electronics support AM and FM as well as all function modes of your radio. TCI TACT-MIC Remote Speaker Microphones are made as well as Thales RSM's, but are half the cost. Radio bias power required so this product will not work in RT-1523D, ASIP or PCS-5D radios.