RELIABLE TRIGGERING - Ensures consistent flash firing with a robust 2.4 GHz radio frequency, minimizing misfires and providing dependable performance for critical shots up to 328 feet. EXTENDED RANGE - Offers freedom to position flashes remotely up to 328.1' (100m), opening creative possibilities without being tethered, enhancing flexibility on any photoshoot. FULL TTL COMPATIBILITY - Seamlessly integrates with Canon's TTL system, automatically adjusting flash power for perfect exposures, simplifying complex lighting setups for efficiency. HIGH-SPEED SYNC (HSS) - Overcome ambient light with sync speeds up to 1/8000 sec, allowing wider apertures in bright conditions and creative control over depth of field with ease.