Flashpoint R2 E-TTL 2.4G Wireless Flash Trigger Receiver for Canon Flashes (X1R-C) Flashpoint R2 ETTL Receiver for Canon - C1 Camera Sync Cable - C3 Camera Sync Cable - 2.5mm to 1/4" Flash Sync Cable - 3.5mm to 1/4" Adapter - Instruction Manual - Flashpoint 1-Year Warranty Flashpoint R2 2.4GHz Radio System unifies and simplifies Great reception range beyond 330 ft / 100m High Speed Sync to 1/8000th Group Selection - A / B / C / D / E (5 Groups)