YONGNUO Single YN622C II YN622C-II-RX HSS E-TTL Flash Trigger for Canon Camera Compatible With YN622C YN560-TX RF-603 II RF-605+ EACHSHOT&reg; Cleaning Cloth Supports USB firmware upgrade Supports "622" communication mode,"560-RX" communication mode Support E-TTL/Manual/Multi flash mode mix using (Mix Control Mode) Compatible with ALL YongNuo/Canon EXII series flashes Support PC port triggering strobe flashes and support 1st, 2nd curtain/HSS (Super Sync)