This flash has a guide number of 35 (ISO 100), flash time:1/200 seconds~1/20000 seconds，Power Source:4xAA Batteries(Alkaline or Ni-MH battery, Not included)) Universal Shoe Mount Flash,Compatible with Canon Nikon Fuji Olympus Panasonic Pantax Sony digital cameras. Vertical Rotation Angle:-7° to 90°, Horizontal Rotation Angle:0° to 270°. Compatible other function:PC synchronous, sniff mode, over temperature protection It is Manul Flash no Sync 1/8000 ports flash mode:M,S1,S2,Multi Compatible with: Canon：1DS Mark(IV/III/II/I) 1D Mark(III/II N/II/I);CANON Rebel (T6i T6 T6s T5i T5 T4i T3i T2i T1i XT XTi XSi);CANON EOS (750D 760D 650D 600D 550D 500D 450D 400D 350D 300D 7D 60D) Nik：（D7200 D7100 D7000 D5500 D5300 D5200 D5100 D5000 D3300 D3200 D3100 D3000 D700 D600 D500 D90 D80 D70 D60 D50） What's in the box？ VD-930 flash:1pcs Protect bag:1pcs Mini stand:1pcs Reflector:1pcs Instrucation manual:1pcs