YONGNUO Wireless TTL Flash Trigger YN622N II with High-Speed Sync HSS 1/8000s for Nikon Camera The new upgrade version YN622N II supports receiving the trigger signal of the YN560-TX/RF605 (603MODE)/RF603II Series products. Equipped with quick lock design and supports USB firmware upgrade. High-speed Synchronous and Remote Control Function. Supporting mixed mode and Single-contact of camera and flash trigger. Work with Strobe Studio flash light in HSS function.