Shure BLX24R/SM58 H8E, UHF Wireless System, SM Vocal Series, SM58 Handheld transmitter, Up to 12 systems simultaneously, Pilot tone, Microprocessor controlled internal antenna diversity, QuickScan function to locate available frequencies, Dynamic SM58 microphone capsule, Frequency range: 50 - 15,000 Hz, Directional characteristic: Cardioid, Receiver with metal housing: 9.5""/ 1U, Removable BNC antennas, XLR- and jack outputs, LCD with HF and audio signal, 10 mW Transmitter power, Frequency range: K3E (518 - 542 MHz), Delivery includes rack mounting kit