YONGNUO YN560 IV Wireless Flash Speedlite Master + Slave Flash + Built-in Trigger System for Canon Nikon Pentax Olympus Fujifilm Panasonic Digital Cameras

Amazon.com Price: $64.99 (as of 18/09/2019 01:19 PST- Details) & FREE Shipping.

YN560 IV=YN560III+YN560-TX, Supports Wireless Master Function.
Supports Wireless Slave Function, fully supports YN560-TX, RF-603 II RF-602 Wireless Transmitter.
Supports Multiple Trigger Synchronous Mode. Enure the battery is fully changed.