Godox Thinklite TT685S TTL High Speed Sync 1/8000s GN60 Camera Flash Speedlite Light + X1T-S Wireless Trigger Transmitter Compatible for Sony Cameras+Diffuser &Filter&Snoot+USB LED Godox TT685S is Fully Support HSS(Max.1/8000S), front and rear curtain sync, FEC, Multi flash, Manual flash, TTL/M/Multi/S1/S2 modes, 20-200mm auto/manual zooming etc. GN60, 22 steps of power output(1/1~1-128); Approx.0.1-2.6s recycle time, 230 full power flashes(using 2500mA Ni-MH batteries). With C.fn cutom function settings. Optical transmission with even illuminatin and stable output. 2.4G wireless trnasmission with all-in-one functions and 100 meters further transimission. With dot-matrix LCD panel to offer clear and easy operation. Use 4 function buttons to change various settings according to different situations. Godox Thinklite TT685S Speedlite is compatibe with Sony Wireless Lighting System(WL). As a mster unit TT685S can control Sony cameras flashes e.g. HVL-F60M, HVL-F43M and HVL-F32M via wireless. As a slave unit, TT685S can be controlled by wireless signals of Sony camera flashes e.g. HVL-F60M, HVL-F43M and HVL-F32M. Godox Thinklite TT685S Speedlite with X1T-S Wireless Trigger Transmitter applies to Sony DSLR series cameras and is compatible with TTL autolash