Sony FA-WRC1M Wireless Radio Commander
For a7 II, a7R II, and a7S II Cameras 2.4 GHz Radio Transmitter with 98.4 Feet Range Works with up to 15 Radio Receivers 14 Channels and up to 5 Groups Remote Power Control from 1/1 to 1/256 TTL and High-Speed Sync Support Manual Flash Triggering Multi Terminal for Triggering Camera Multi Interface Foot; PC Sync Terminal Dust- & Moisture-Resistant Construction
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