The FR-WR Wireless Radio Flash Receiver allows you to remotely trigger and control flashes using a 2.4 GHz radio transmission. This unit has a receiving range of up to 98.4' and can operate on one of 15 channels within three groups. The receiver has a top hot shoe for attaching a flash, a bottom locking cold shoe, and dual rear dials that allow for intuitive channel and group selection. A PC sync terminal is also featured for wired pairing with strobes.
Olympus FC-WR Receiver Specs