Nady EO3FF Wireless In-ear Monitor System Offers performers a customized listening environment Ability to move about with total freedom without affecting monitor audio Range up to 300 Operates on one of eight factory switchable channels using separate VHF band that will not interfere with the simultaneous operation of existing VHF and UHF wireless systems on the same stage Up to three E03 systems on three different channels can be operated in the same location simultaneously