This listing is for the BLX wireless system that is rack mountable. If you are not looking to mount the received in a rack or case, you want the Shure BLX24/SM58. It is the same system but comes with a travel case instead of the expensive rack mount kit.
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.
BLX4R rack mount receiver
BLX2/SM58 handheld transmitter
single and dual rackmount kit
two 1/4 wave antennas
2 AA batteries
and user guide. (H8 Band)