The Shure BLX14RE/P31-S8 Wireless System operates within the 823 - 832 MHz frequency band and is designed for presentations multi-instrumentalists and active performers. The wireless system offers analogue wireless transmission and includes the BLX1 bodypack transmitter BLX4R wireless receiver and the PGA31 headset microphone. The BLX4R receiver comes with a rack mount kit and removable antennas for quick and intuitive operation. The BLX system range prides itself on professional sound that is easy and efficient to setup giving you the freedom to perform with quality.