Godox TT685N GN60 TTL HSS 1/8000s Speedlites with X1TN Wireless Trigger Slave/Master Flash Kit for Nikon D800 D700 D7100 D7000 D5200 D5100 D5000 D300 TT685N applies to Nikon DSLR cameras and I-TTL autoflash,Combination with X1T-N wireless trigger can remote control the Godox flashes which have built-in 2.4G wireless X system (V860II/TT685/AD600/AD360II) with TTL,HSS and other more functions to offer great convenience and better light distribution for photographers GN60,TTL,HSS,Up to 1/8000s,20-200m auto/manual zooming,fully support TTL/M/S1/S2 modes.FEC,FEB,FE lock,front& rear curtain sync,modeling flash, etc; Built-in 2.4G wireless,even illumination and stable output, 22 steps of power output(1/1-1/128),approx 0.1-2.6s recycle time, 100 meter further transmission,grouping system,up to 5 groups & 32 channels TT685N as a master flash to control Nikon speedlights e.g. SB-900,SB-910; as slave flsh under control of Nikon speedlights e.g. SB900,SB910 etc and wireless commanders of pop-up flashes on Nikon D7100/D7000/D800, etc. Single speedlight recommend Ni-NH batteries or 4*LR6 alkaline batteries, Multi Godox flashes fit Godox PB960 dual output high power 4500mAh/11.1V lithium battery pack (search ASIN:B01BTOKK5K); 230 full power flashes(using 2500mA Ni-MH battery),22 steps of power output(1/1-1/128),approx 0.1-2.6s recycle time