Specifications: Circuit design: Insulated Gate Bipolar Transistor (IGBT) Guide No.: 58 (ISO 100, 105mm) Flash mode: M, Multi Triggering mode: Camera set-up,TX, RX, S1, S2 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) 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 external charging port Wireless triggering distance: 20~25m indoor, 10~15m outdoor, 100m(2.4G wireless) Additional features: The electronic flash head zooming, sound prompt, PC prot, power saving mode, overheating protection and auto save settings Item size: 20 * 7 * 5.5cm / 7.9 * 3.0 * 2.2in Item weight: 366g / 12.9oz Package size: 21 * 10 * 8.5cm / 8.3 * 3.9 * 3.3in Package weight: 541g / 1.19Lbs Package List: 1 * Speedlite 1 * Mini Stand 1 * Protecting Bag 1 * User Manual(Chinese & English)

Support 24~105mm electric zooming function, ultrafast charging recycle system, supports external power supply. Supports setting save automatically, custom settings. Verify the flash light setting. Supports Multiple Trigger Synchronous Mode. Top of the camera, 2.4G wireless triggering, S1 and S2 pre flash cancel mode. Supports Wireless Slave Function, fully supports YN560-TX, RF-603 II RF-602 Wireless Transmitter.(YN560 IV=YN560III+YN560-TX). Supports Wireless Master Function,provides 3 independent groups with controlling ability, realizing remote control the flash mode, flash output and focal length of the YN560 IV and YN560 III.