[POWERFUL FUNCTION] Support TTL flash, manual flash, high-speed sync, front/rear-curtain sync. 2.4GHz frequency, 25m trigger distance. Can be main or slave light. 3 groups/4 channels. [VERSATILE FLASH COVERAGE] Auto/manual zoom from 24 to 105mm. Wide-angle diffuser for lenses up to 14mm. AF assist lamp for low light focusing. Ideal for various photography genres. [ADJUSTABLE FLASH OUTPUT] Output range from 1/1 to 1/128 with 5600k color temperature. Perfect for portrait, wedding, event, travel, and still life photography. [USER-FRIENDLY DESIGN] Lightweight ABS material. Reflection angle adjustable. 1/10000s flash duration. Battery-saving sleep mode. Easy to operate and carry with portable bag. [WIRELESS CAPABILITY] Master and slave unit options. Effective trigger distance of 25m. 1-4 channels available. Ideal for professional and amateur photographers alike.