The MPR50-IEM is a compact true-diversity wideband IEM receiver for professional monitoring. It supports up to 232 MHz bandwidth across 470–700 MHz (N) and 566–798 MHz (M, discontinued) with 25 kHz steps, and FM stereo MPX decoding with mono option. The headphone output is a 3.5 mm stereo jack delivering up to 200 mW peak into 32 Ω. Power comes from two AA cells or a Li-ion pack, with OLED display and IR/USB programming.