Shure SLX24/BETA87A Handheld Wireless System, H5 Automatic Frequency Selection Automatic Transmitter Setup Rugged metal chassis Volume control on rear of unit1/2 rack design Furnished rack hardware Non-slip bumpers for use out of rack XLR and 1/4" outputs Microprocessor-controlled diversity RF presence LED 5-segment audio meter Multi-function, Backlit LCD Low battery indicator Frequency and power lockout 960 Selectable frequencies across 24 MHz bandwidth Detachable 1/4 wave antennas