Twelve wireless conference microphones each channel has a Dedicated XLR output and volume control stable transmission via 900MHz frequency band | | 24-Bit digital Technology delivers a clean, professional quality signal individual digital microphone IDs eliminates channel Cross-Talk | | Wide frequency response (50 - 20, 000 Hz) ensures natural sounding vocals Twelve balanced XLR outputs available | | Three mixed outputs available brackets included for mounting in a rack case One additional frequency set available; A total of 16 frequencies