YONGNUO YN560 IV Universal 2.4G Wireless Speedlite Flash On camera Master Slave Speedlight ( Item#: D10186 )

Features:
【Master & Slave Wireless Flash】As a master unit, YN560 IV 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; as a wireless slave unit, fully supports YN560-TX, RF-603(I/II), RF-602 Wireless transmitter.
【Multiple Trigger Mode Supported】GN58 at ISO100,105mm High guide number 2.4G wireless flash, supports M/Multi mode, 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.
【Electric Zooming & High Speed Recycling】The flash focal length can be altered between 24-105mm by pressing [ZOOM] button; Ultrafast Charging Recycle System for better using experience.
【Sound Prompt Function】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).
【Other Practical and Powerful Functions】With charging socket for external power pack, meeting your higher demand for charging recycle; The parameters on the flash will automatically save when the flash turned off; the users can customize setting the flash function as needed.

Specifications:
Brand: YONGNUO
Model: YN560 IV
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, TX
Zoom range: 24, 28, 35, 50, 70, 80, 105mm
Vertical rotation angle: -7 to 90 degrees
Horizontal rotation angle: 0 to 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 to 1/20000s
Flash control: 8 levels of output control (1/128 to 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
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(English & Chinese)