Guide number 31. Built in RF-602/603 trigger. HSS, TTL modes. Sony Multi Interface shoe.
2.4GHz radio transmitter. Cooperation with Yongnuo lamps. M/Multi/TTL/Gr modes. HSS synchronization
2.4GHz radio transmitter. Cooperation with Yongnuo lamps. M/Multi/TTL/Gr modes. HSS synchronization