The BLX288/PG58 Dual Channel Handheld 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 2 PG58 handheld transmitters, BLX88 dual-channel receiver, 2 microphone clips, power supply, 4 AA batteries, and user guide.