B086DKSCF3 Godox Thinklite TT685O TTL Camera Flash Compatible with Olympus E-M10II E-M5II E-M1 E-PL8/7/6/5 E-P5 E-P3 Pen-F Panasonic DMC-GX85 G7 GF1 LX100 G85 GH4 FZ2500GK + Godox CF-07 Color Filter Kit

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GN60 (m ISO100, @200mm). 22 steps from 1/1 to 1/128. Approx. 0.1-2.6s recycle time, 230 full power flashes (using 2500mA Ni-MH batteries).
With built-in Godox 2.4G wireless X system with all-in-one functions and 100m further transmission to offer creative light effects.
Compatible with other Godox TTL camera flashes, TTL outdoor flashes, TTL studio flashes, etc.
It can function as either an optical wireless master or slave flash. As a master unit, TT685O can work in TTL/M/Multi/OFF flash mode. As a slave unit, TT6850 is compatible with Godox X1 series flash trigger.
Supports HSS (max. 1/8000s), front & rear curtain sync, FEC, multi flash, manual flash, etc.