Dedicated to the Olympus TTL system, the FC-WR Wireless Radio Flash Commander allows you to shoot with wireless freedom as well as fire and control multiple flashes at once using 2.4 GHz radio transmission. This unit has a triggering range of up to 98.4' and provides three groups for triggering and controlling an unlimited number of flashes. The commander has a top LCD screen for reviewing settings and dedicated buttons are available for each of the three groups. Additionally, like Olympus OM-D-series cameras, this commander is fully splash, dust, and freeze-resistant for use in harsh environments.