Features: 1) 2.4G ULTRAL-LONG-RANGE WIRELESS FLASH Use RF-602/RF-603 wireless flash system which is trusted by the users around the world. Support 2.4G ultra-long-range wireless flash with the farthest triggering distance up to 100 meters. 2) FULLY SUPPORT RF-603, RF-602 WIRELESS TRANSMITTER: The YN560-III can receive the signals sent by RF-603 or RF-602 wireless transmitter, supporting 16 channels. Easy to enjoy wireless lighting. 3) LARGE SIZE LCD PANEL The YN560-III is equipped with a large size LCD panel. It is intuitive and convenient for use. 4) PROVIDED WITH ELECTRIC ZOOM FUNCTION. Lamp cover focal length can be altered between 24~105mm by pressing [ZOOM] button. 5) GN58 @ ISO100,105mm High guide number 2.4G wireless flash supports M/Multi mode. 6) MULTIPLE TRIGGER MODE SUPPORTED YN560 III can be triggered by the camera set-top, 2.4G wireless trigger. S1 and S2 light are sensitive trigger, S2 with pre-flash-canceled mode. 7) PROVIDED WITH EXTERNAL POWER SOCKET YN560-III provides charging socket for external power pack, meeting your higher demand for charging recycle. 8) PC PORT SUPPORTED YN560-III is equipped with PC port. Simply connect it to your camera and make them synchronized. 9) SOUND PROMPT SYSTEM When the sound prompt system is enabled, different sound modes will prompt different working conditions of the speedlite so as to allow you to focus on shooting process (Note: the sound can be turned off). 10) HIGH SPEED RECYCLING SYSTEM The recycling time for full output just takes 3 seconds; you can get high speed current return experience even without using brand new batteries, which will only takes 4~5 seconds; besides, you can use the external charging box to accelerate the charging speed. 11) ANDVANCED OPTION SETTINGS YN560-III is equipped with advanced options setting function, where you can self-define the functions of the speedlite on your own requirements. 12) AUTOMATIC SETTINGS SAVING YN560-III can automatically save your current operating settings to convenient your next use. 13) METAL HOT SHOE STAND, SOLID AND RELIABLE. Suitability: For Canon EOS 5D ,5D Mark II, 1Ds Mark [ IV / III / II / I ], 1D Mark [ III / II N/ II / I],7D, 60D ,50D, 40D, 30D, 600D, 550D, 500D, 450D, 400D, 350D , 300D,1100D,1000D etc. For Nikon D3s, D3x, D3, D700, D300s, D300, D200, D100, D90, D80, D70s, D7000,D5100, D5000, D3100,D3000, D60, D40X For Pentax K-7, K-x, K-m, K20D, K10D, K200D, K100D, etc. For Olympus E5, E3, E30, E300, E620, E520, E420, E450, E-P2, E-PL2, etc. Specifications: Circuit design: Insulated Gate Bipolar Transistor (IGBT) Guide No.: 58 (ISO 100, 105mm) Flash mode: M, Multi Triggering mode: Camera set-up, S1, S2, RX Zoom range: 24, 28, 35, 50, 70, 80, 105mm Vertical rotation angle: -7~90 degrees Horizontal rotation angle: 0~270 degrees Power supply: 4* AA size batteries (not included; Alkaline or Ni-MH are usable) Lighting times: 100~1500 times (AA alkaline cell used) Recycle time: approx. 3s (AA alkaline cell used) Color temperature: 5600k Flash time: 1/200s~1/20000s Flash control: 8 levels of output control (1/128~1/1), 29 levels of fine tuning External interface: hot shoe, PC port and eternal charging port Wireless triggering distance: 100m(2.4G wireless); 20~25m indoor, 10~15m outdoor Additional Features: The electronic flash head zooming, sound signal, automatically saving setting, power saving mode, over heat protection and advanced options YN560-III Speedlite size: 19 * 6.5 * 5.5cm / 7.7 * 2.6 * 2.2in YN560-III Speedlite weight: 368g / 13.0oz Package size: 21 * 9.5 * 8cm / 8.3 * 3.7 * 3.1in Pacakge weight: 542g / 1.2Lbs Package List: 1 * YN560-III Speedlite 1 * Mini Stand 1 * Protecting Bag 1 * User Manual