Voking VK800 I TTL External Camera Flash Slave Speedlite for Nikon D3400 D3300 D3200 D5600 D850 D750 D7200 D5300 D5500 D500 D7100 D3100 and other Digital SLR Cameras Compatible with Nikon DSLR cameras Ultra powerful GN 58 (105mm, ISO 100 meter),Flash range 24-105mm lens focal length Flash mode:Slave,TTL M, MULTI, S1, S1 Fast recycle time Metal hot shoe