The nissin receiver air r for nikon adds a new dimension of flexibility to the popular nissin air system nas combined with the nissin commander air 1 it allows a photographer to wirelessly control almost any kind of nissin camera flash and many original nikon flash not compatible with nikon sb 5000 with nas and ttl hss support high speed sync up to 18000 seconds zoom and manual power output can all be controlled wirelessly whats more one commander transmitter can control up to 21 s