Dual Channel Combo Wireless System is part of the BLX wireless systems family. Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage. Includes BLX88E dual-channel receiver, BLX1 bodypack transmitter, BLX2/PG58 handheld transmitter, PGA31 headset microphone, power supply, microphone clip, clothing clip, headset windscreens, and user guide. Frequency: 518-542 MHz