IFBlue R1c Wireless IFB Receiver
Offered in five different frequency ranges to match existing T4 transmitters: A1 (470-537 MHz), B1 (537-614 MHz), C1 (614-692 MHz), 941 (941-960 MHz) and VHF (174 to 216 MHz).(IFBR1C)
Compatible with Lectrosonics IFBT4 or any Digital Hybrid Wireless transmitter in IFB compatibility mode.