?Power port brings amazingspeed and power? With the power port, you can connect the TT685ll with an externalLithium-lon power pack as PB960 to boost the flash performancefor more possibilities.The TT685 will be your next workhorse forshooting real weddings, street fashion, news photography, and more. ?Various flash modes forunlimited creativity? The TT685ll continues the functions in TTL,Manual and Multi flashmode. Under TTL mode, all the functions as HSs(up to 1/8000s),FEC, FEB, rear-curtain sync, and so on help you to capture everysplendid moment quickly, precisely, and creatively. In manual mode,there are 22 steps of power output from 1/1 to 1/128 for your freeadjustment. ?Quick-release Lock? Like the other upgraded additions to the GodoxTTL Flash lineup, the TT685ll is designed with aquick-release lock to ensure a smooth setup,which helps you capture the next masterpiece inthe critical moments. ?TCM Instant Conversion? The TT685ll is added with the TCM function to enhance yourshooting efficiency.TCM allows for instant conversion from TTLto manual mode.At the same time, this function helps you lockthe proper exposure value ensuring every fire with an accurateexpression of light. ?Godox 2.4G Wireless X System?:The TT685Il is also built-in with Godox 2.4G wireless × system toobtain seamless connectivity with compatible flashes or flashtriggers.The wide selection of groups and channels ensures areliable shooting process without any interference.The wireless ×system also gives you the utmost freedom for lighting setup with arange of connections up to 100 meters.