Godox X1C 2.4G Wireless Flash Single Receiver for Canon EOS DSLR Camera (Pack of 2 X1C-R Receiver) Godox First TTL Wireless Flash Trigger X1C applies to Canon EOS Series Camera, Featuring multi-channel triggering, stable signal transmission, sensitive reaction, Compatible with Canon E-TTL II Autoflash DSLR Cameras It can be used to trigger camera shutter, studio flash and camera flash Built-in 2.4G wireless transmission provides 100 meters further transmission distance and creative triggering methods Support for E-TTL II Autoflash, 1/8000s High Speed Sync, Flash exposure compensation, flash exposure lock, modeling flash etc. Wireless remote control and grouping system; support 5 groups and 32 channels to triggering flash, with Big and Clear LCD Panel for easy operation