B00OOKXCGQ Yongnuo YN560 IV Speedlite Flash Supports Wireless Master Function

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Supports Wireless Slave Function, fully supports YN560-TX, RF-603 II RF-602 Wireless Transmitter.
Supports Multiple Trigger Synchronous Mode. Endure the battery is fully changed.
Supports setting save automatically, custom settings ( fan ). Verify the flash light setting
Supports ultra-fast charging recycle system, external power supply. Check the remote control settings before use