This TT685S camera flash applies to Sony DSLR series cameras and is compatible with TTL autoflash. With this TTL compatible flash, your shooting will become simpler.
Optical transimission with even illumination and stable output
2.4G wireless transimission with all-in-one functions and 100 meters further transimission.
TTL wireless flash transmitter X1T-S(for sony)offers better user experience.