The ARRI RIA-1 works as both a TX or RX and supports ARRI's exchangeable radio modules (RF-EMIP or RF-2400 in Australia). It can connect to a camera for power, start/stop/tally and camera control as well as to other LBUS devices for lens control.

When using the RF-2400 Module, you can extend the range of your Hi-5 to Camera by replacing the standard RF-EMIP radio module with the RF-2400 (Orange) module in both the RIA-1 on camera and then in the Hi-5 Hand Unit itself.