About this item Excellent button design: by long pressing the TCM button, the flash value can be converted into the power output value in M mode in TTL mode. By briefly pressing the TCM button, the groups can be switched between single group and multi-group mode. Easy operation and great portability: extra large LCD panel, 5 group buttons and 4 buttons provide practical manipulation. Firmware update Firmware-UpfirmwarDate via the Type-C USB port on the case Full support TTL autoflash: 1/8000s high-speed sync, multi flash, manual flash, flash exposure compensation, supports TTL autoflash, 01-99 wireless ID, 2.4 GHz. TCM transformation function magnification, one-shoot and multi-shoot setting, group modeling lamp control, group zoom, adjust. The output value of all groups at the same time, etc. Wide range of uses: as a wireless GODOX Xpro II-C flash trigger/wireless trigger/wireless Nikon flash trigger/flash trigger with 2.5 mm sync cable connection.Xpro-C can control the Canon original flashes.