YONGNUO YN690EX-RT On-camera Flash Light Master Slave Speedlite GN60 TTL 1/8000s HSS 1s Recycle Time with 2.4G Wireless Trigger System Replacement for Canon DSLR Camera

【Built-in 2.4G Wireless Trigger System】Can work as a master or a slave unit, and fully compatible with RF radio triggering signals from other YONGNUO' speedlite.

【Powerful and Versatile】 With a Guide Number of 60 at ISO100 and 200mm, this on-camera flash light supports TTL, M, MULTI, and Gr flash modes. It offers a high-speed sync of up to 1/8000s, USB firmware upgradeability, real-time battery level display,

【Compatibility with Canon Wireless RT System】 When used in wireless flash shooting, one YN690EX-RT can serve as the master control to trigger both Yongnuo RT flash lights and Canon RT flash lights. It allows remote control of flash modes and intensit

【Optical Wireless Master Control】In optical wireless shooting, the YN690EX-RT can act as the master control to trigger Yongnuo EX flash lights (except YN585EX) and Canon EX series flash lights wirelessly in TTL/M/MULTI modes, expanding your wireless

【Optical Wireless Slave Function】The YN690EX-RT supports receiving wireless signals from Canon or Nikon flash lights as the main signal, supporting S1 and S2 flash modes, allowing you to integrate it seamlessly into your existing flash setup.