The M-216 wireless microphone transmitter offers the ultimate performance and versatility for assistive listening, language interpretation, tour guide presentations, personal cueing, and for other personal remote transmission situations. For use with the PR-216 and PR-216 Option 7 synthesized receivers. The M-216 incorporates the latest digital and analog technologies to produce low residual noise, wide dynamic range, and extended frequency response rendering the most natural sound possible from a wireless microphone. The transmitter's micro controller automatically sets the modulation deviation, companding or non-companding audio processing, and the EQ when corresponding channels are selected. Because of this comprehensive feature, this versatile transmitter can transmit on 19 high fidelity channels and 38 standard channels ensuring compatibility with receivers conforming to regulations regarding Low Power Radio Service (LPRS) transmissions in the 216-217 MHz band under Part 95 of the FCC regulations.