Shure BLX24R/SM58-H9 Wireless Vocal System With BLX4R Receiver And BLX2 Handheld Transmitter With SM58 Microphone, H9 Band, 512-542 MHz.
 
The BLX24R/SM58 Handheld Wireless System is part of the BLX wireless systems family.
Includes BLX4R rack mount receiver, BLX2/SM58 handheld transmitter, microphone clip, single and dual rackmount kit, two 1/4 wave antennas, zipper bag, power supply, 2 AA batteries, and user guide.