Godox TT600S GN60 2.4G Wireless Flash Speedlite for Sony A7 A7R A7S A7 II A7R II A6000 DSLR Camera with MI Shoe Optic & 2.4G Radio Transmission available, offers more stable signal, farther distance, wider range of application, less power consumption, less affected by the obstacle Full power flashes is about 230 times(Use 2500mA NI-MH battery). Full flash recycle time is up to 0.1-2.6s(Use Panasonic eneloop batteries) GN60(m ISO 100,@105mm), 22 steps of power output(1/1~1/128); Approx. 0.1-2.6s Recycle time, 230 Full Power Flashes(using 2500mAh Ni-MH batteries); Support M/Multi/S1/S2 Modes, 20-200mm Auto/Manual Zooming. It can achieve 1/8000s high speed sync function when using in combination with high speed triggers.(e.g. Godox X1 TTL Wireless Flash Trigger, etc.) Adopts built-in godox 2.4g wireless X system with abundant functions. With master and slave wireless flash system, tt600s fits Sony camera with MI shoe