Shure BLX24/Beta58 K14, UHF Wireless System, Beta vocal series, Beta58 handheld transmitter, Up to 12 systems simultaneously, Pilot tone, Microprocessor driven antennae-diversity, Quick-Scan function for free frequency detection, Dynamic Beta58 microphone capsule, Frequency range: 50 - 16,000 Hz, Polar pattern: Super-cardioid, Plastic receiver, Integrated antennae, XLR and jack outputs, Audio status LEDs, Frequency range: K14 (614-638 MHz), 10 mW transmitter power, Case included