Features: Super mini size and lightweight speedlite. Support E-TTL/M/Multi flash mode. Fast recycling time with a guide number of GN27. In slave mode, it supports 4 channels in 3 groups. 8 levels of output control(1/128--1/1), 22 levels of fine tuning. Adjustable vertical angle of 60/75/90. Support front-curtain sync/rear-curtain sync/exposure compensation. LCD screen for clear and convenient operation. Enter into stand-by state if no operation after several minutes to save power.