YONGNUO YN-560 IV Flash Speedlite for Canon Nikon Pentax Olympus DSLR Cameras

Supports Wireless Master Function Supports Wireless Slave Function, fully supports YN560-TX, RF-603, RF-602 Wireless transmitter Multiple Trigger Synchronous Mode Supported Settings Save Automatically, Supports Custom Settings (Fn) Features: 1.Supports Wireless Master Function  The YN560 IV can be used as master unit, 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.  2.Supports Wireless Slave Function, fully supports YN560-TX、RF-603（I/II）、RF-602 Wireless transmitter  One YN560 IV can respectively receive the wireless signal from YN560 IV、YN560-TX、RF-603 (I/II)、RF-602,with optional 16 channels; when the YN560 IV and YN560-TX used as transmitter, it can realize remote control the parameter settings.  3.Multiple Trigger Synchronous Mode Supported  4.Settings Save Automatically, Supports Custom Settings (Fn) 5.GN58 @ ISO100，105mm 6.Sound Prompting System 7.Support El