SpecificationCircuit design: Insulated Gate Bipolar Transistor (IGBT)Guide number: 58 (ISO 100, 105mm)Flash mode: TTL, M, MultiTrigger mode: Set-top, Sc, Sn, S1, S2Wireless triggering distance: 20~25m indoor, 10~15m outdoorFlash coverage: auto、24、28、35、50、70、80、 105mmVertical rotation angle: -7~90 degreesHorizontal rotation angle: 0~270 degreesPower supply: 4×AA batteries (not included)Lighting times: 100~1500 timesRecycle time: Approx 3sColor temperature: 5600kFlash time: 1/200s~1/20000sFlash control: 8 levels of output control (1/128~1/1), 29 levels of fine tuningExternal interface: hot shoe, PC port, external charging portExternal power supply: can be connected to SF-18C or SF-17C charging packAdditional features:Rear-curtain sync, FEC, FEB,exposure lock,modeling light, lamp holder manual zoom, auto zoom,sound prompt, advanced option, automatically saving setting, PC port, power saving mode,over heat protection.Suitable Camera and Flashes in Wireless TTL Slave mode:Camera: Canon 6D 7D, 70D 60D, 600DFlash: Canon 580EX IISuitable Camera in TTL function:Canon 5D Mark II,5D Mark III, 50D 450D 500D 550D 600D 650D 700D 100D 1000D 1100DCanon Rebel XS XSi XTi T1i T2i T3Suitable Camera in S1 / S2 mode:Any DSLR camera with standard hot shoePackage including:1 x YN-565EX II for Canon1 x Mini stand1 x Manual in English and Chinese1 x Protection bag