Feautures: FE lock 11 Customizable Functions Manual Flash 1/1 - 1/256 Power Modeling Light Status Control Adjusts the Flash Zoom Coverage for Each Group Selective Transmission of Data Conserves Energy and Battery Life Magnification Function Displays Details of Each Group Settings Global Adjustments to Exposure Values for Multi-Group in M Mode 5 Group Buttons and 4 Function Buttons Offer Convenient Manipulation Support Type-C USB Firmware Upgrade and Wireless Triggering by 2.5mm Sync Cord Jack Compatible Camera: Canon EOS Cameras (E-TTL II Autoflash) Support for the cameras that have PC sync socket. Flash Exposure Control TTL Autoflash: Canon E-TTL II Manual flash mode: Yes Multi (Stroboscopic) flash mode: Yes Function HSS (High-speed sync): Yes Second-Curtain Sync: Yes Flash exposure compensation: Yes