with build-in wireless signal, this godox thinklite camera flash tt520ii supports wireless triggering functions, which is suitable for almost all dslr cameras with standard hotshoe.
Main features: -with 433mhz wireless transmission, rt transmitter and 16 channels to triggering -1/300s-1/2000s flash duration, clear and vivid images -3 flash modes: m, s1 and s2 for improved versatility and usability. -8 variable flash output from 1/128 to full, meeting your flashlight demands. -multiple auto-self protections for power saving and against overheating. -added with sync socket, and a quick charge port for external power pack. -integrated reflection board, giving a highlighted point on the eyes -build-in wide panel diffuser, creating soft and natural illumination
technical date: model: tt520ii guide number: 33(m iso 100) flash mode: m, s1, s2 vertical rotation angle: 0-90 degrees horizontal rotation angle: 0-270 degrees power: 4xaa batteries (alkaline or ni-mh are usable)