Godox TT685S TTL LCD Camera Flash Speedlite for Sony DSLR a77II a7RII a7R a58 a99 ILCE6000L Main Features:- Compatible with TTL autoflash, suitable for Sony DSLR cameras- Two transmitting styles: optic and built-in 2.4G wireless, offer creative light effects- Can be both master and slave flash- Full TTL functions, such as HSS ( max. 1/8000s ), FEC, FEB, FE lock, front and rear curtain sync, modeling flash, etc.- Dot-matrix LCD panel with backlight, easy to operate with 4 function buttons- Support TTL / M / Multi / S1 / S2 modes- 20 - 200mm auto or manual zoomingSpecifications:Guide number: 60 ( ISO 100 / 105mm )Power source: 4 x AA batteries ( LR6 alkaline or Ni-MH rechargeable battery ) ( not included )Auto / manual zoom: 7 steps ( 24 / 28 / 35 / 50 / 70 / 80 / 105mm )Number of flash: About 230 times at full power by using 2500mAh Ni-MH batteryRecycle time: Approx. 0.1 - 2.6s ( Panasonic eneloop Ni-MH battery used )Light color temperature: 5600K + / - 200KFlash duration: 1/300s - 1/20000s ( depending on types of camera )Flash mode: TTL II, M, S1 / S2, RPT, HSS Package weight: 0.622 kgProduct Size(L x W x H): 19.00 x 7.60 x 6.40 cm / 7.48 x 2.99 x 2.52 inchesPackage Size(L x W x H): 23.00 x 10.00 x 8.00 cm / 9.06 x 3.94 x 3.15 inchesPackage Contents: 1 x Godox TT685S TTL LCD Flash Speedlite, 1 x Mini Stand, 1 x Carrying Bag, 1 x English and Chinese User Manual