MPR30-IEM is a compact true-diversity wireless receiver for professional in-ear monitoring. It provides a wide tuning range up to 232 MHz across 470–798 MHz with Stereo MPX, Mono and Mix modes, and delivers up to 200 mW peak headphone output. The unit uses two whip antennas and an OLED display for navigation, plus infrared and micro-USB programming. Power is supplied by two AA cells or Li-ion packs with onboard charging via micro-USB.