Shure BLX24R/Beta58 K3E, UHF Wireless-System, Beta Vocal Series, Beta58 Handheld transmitter, Up to 12 systems in parallel, Pilot tone, Microprocessor driven antenna-diversity, Quick-Scan function for open frequency detection, Dynamic Beta58 microphone capsule, Frequency range: 50 - 16.000 Hz, Characteristics: Super-Cardioid, 9.5"" 1 U metal receiver, Detachable BNC Antennas, XLR- and jack outputs, LCD with HF and Audio indicator, Frequency: K3E (606 - 630 MHz), Including rack mounting kit