Godox V860II-S High-Speed Sync GN60 1/8000 2.4G TTL Li-ion Battery Camera Flash Speedlite Light Compatible for Sony Camera + USB LED Adopts Godox wireless X system, build-in 2.4G wireless transmission offers all-in-one functions and 100 meters further transmission distance Godox V860II-S Speedlite Fully support TTL functions, include TTL auto flash, manual flash, 1/8000 high-speed sync, flash exposure compensation, second curtain sync, etc. As a master flash Speedlite unit to control Sony camera flashes, as a slave flash Speedlite unit under control of Sony camera flashes Max. 1.5s recycle time & 650 full power pops, 2000mAh lithium batteries ensure better shooting performance. Guide Number (1/1 power @ 200mm): 60 (m ISO 100) / 190 (feet ISO 100)