MRM-70 is a wireless diversity receiver module fitted for MIPRO's MA-705, MA-707, MA-808 portable PA systems and MA-909 wireless mixer. It can also fit other PA amplifiers, mixers, active powers, signal processors and other karaoke players. Its innovative wireless features and performance add value to these systems. UHF band and PLL technology are utilized to avoid the often congested VHF band. Diversity and advanced circuitry are incorporated to eliminate signal dropouts and random noise interference. To install simply follow the simple wiring diagram. Ascertain the main unit has an ideal reserved slot to be fitted. Align the edge connector and wired accordingly. Fasten the two screws in place when done.