High performance high compatibility high-power flash output. - Quick call back to obtain a rapid rate about 3-5 seconds recycle time (using 4 x AA alkaline batteries) - The external connector: hot shoe PC - Wireless trigger distance: outdoor 10 ~ 15 m - Additional features: voice prompts auto-save settings PC synchronization power-saving mode overheat protection Product Features: - Added adjustable LED Fill Light --- via a button on the flash you can make it adjustable for the fill light between 0 and 100%. - GN50 @ ISO100 --- for the ES560 given a higher flash index reached the same level of the mainstream hot shoe flash. - Wireless trigger sensors --- as ES560 improved wireless triggering sensor makes S1 S2 mode can work in an outdoor environment. - Increase PC sync port --- ES560 adds a standard PC synchronous port allowing you to more easily make use PC sync cord. - You can use an external charging box for recycling time to accelerate again. - Supports high-speed continuous shooting ---- 1/ 8 and below the brightness ES560 can support high-speed continuous shooting 8FPS 's. - Improved power saving mode ---- Wanxin digital design saving mode for the ES560 when flash light in the power saving mode the flash will be dormant. - Finer brightness control - ES560 brightness control is more precise from 1 / 128 to 1 /1 each level has 8 fine-tune flash brightness small files; allows you to get almost all of the desired lighting effect. - Auto Save Settings ---- ES560 can automatically save your current operating settings. - Adapted to Canon Nikon Pentax Olympus etc SLR