Description: TT685O camera flash applies to Olympus Panasonic DSLR series cameras and is compatible with TTL autoflash. With TTL compatible flash, your shooting will become simper.Flash Features:?Flash Modes - ETTL / M / OFF?FEC / FEB - 1/3rd Increments (▒3 Stops)?Manual Flash - 1/128 - 1/1 Output?Remote Flash Zoom - 20-200mm (Auto / Manual) (Global for All Groups Only)?GR Group Mode - A / B / C / D / E?32 Channels?Large LCD Display with Back Light?HSS Delay Setting - 0~19.9ms?Micro USB Port for Firmware Upgrades?Transmitter PC Sync Port - Input & Output?Compatible with Olympus E-M10II M5II M1 E-PL8 PL7 PL6 PL5 E-P5 P3 PEN-F, Panasonic DMC-GX85 G7 GF1 LX100 G85, etc. NOTE: the table only lists the tested camera models, not all Olympus / Panasonic cameras. For the compatibility of other camera models, a self-test is recommended; Rights to modify this table are retained.Specification:?Controllable slave groups: 3(A,B and C)?Transmission range(approx.) -Optic: Indoors, 12 to 15m; 2.4G: 100m.?Channels -Optic: 4(1,2,3 and 4); 2.4G -32(1-32)?Slave-ready indicator: Two red indicators blink.?Modeling flash: fired with cameras depth-of-field preview button.Power Supply: Ni-MH batteries (recommend) or 4*LR6 alkaline batteriesFull Power flash times: Approx.230 times (2500mA Ni-MH batteries used) Recycling Time: Approx.0.1-2.6s (eneloop Ni-MH batteries of Panasonics used) Flash-ready Indicator: LED red indicator lights when the flash is ready to work Flash Duration: 1/300s - 1/20000s Color temperature: 5600▒200KPackage Included:1 x TT685O Flash Speedlite1 x X1T-O Transmitter1 x Carry Bag1 x Flash Bounce Diffuser1 x AA Battery Sorage Box1 x Fomito Gray Card1 x Cleaning Cloth1 x 12 pcs Flash Color Ge1 x Protection Bag1 x User Manual