Create a versatile and reliable off-camera flash setup by picking up the FA-WRC1M Wireless Radio Commander from Sony. Able to quickly and easily slide into the Multi Interface Shoe of your a7 II, a7R II, or a7S II mirrorless camera, this device provides effective remote control of up to 15 separately available FA-WRR1 Wireless Radio Receivers from up to 98.4' away thanks to a 2.4 GHz radio system. This configuration also permits operation without requiring line of sight with all the units involved. Additionally, it has access to 14 channels for avoiding interference with other radio triggering systems in the vicinity as well as up to 5 groups for precise control over your lights.
The major benefit of the Wireless Radio Commander is remote control over your flash's settings. This includes exposure compensation, flash power from 1/1 to 1/256, zoom, and more. Along with this, the radio system has full compatibility with Sony's TTL method and supports High-Speed Sync at up to 1/8000 second. Other flashes can be triggered in a manual mode and a PC sync terminal is available for connecting to various strobes and other lights. In addition to all of this, the Commander is equipped with a Multi Terminal for connection and controlling other cameras.
This Commander unit is dust and moisture resistant in order to hold up in less-than-ideal environments much like the cameras. Additionally, it runs on 2 AA batteries.