Features:- With LED supplement light, and the light brightness is adjustable.- High sensitivity wireless triggering sensor makes S1 and S2 mode can be used in outdoor environment and the wireless triggering distance is as long as 15m- Sound prompt function, different sounds indicate working situations and helps you focus on shooting - Provides PC port, you can make the flash synchronously by connecting to the PC port- Super speed of charging recycle: it only takes 3 seconds in charging after full power output. Even without new batteries, you can get the supercharging speed that it only needs 4~5 seconds; In addition, you can use the external power pack to accelerate charging speed once more- High speed continuous shooting: Under the output level of 1/8 or below, WS560 can support the 8FPS high-speed continuous shooting- It will turn to sleep mode automatically when idle or manually turn off sleep mode.- Automatic power saving mode and overheating protection. Specifications:Model: WS - 560Circuit design: insulated Gate Bipolar Transistor (IGBT)Guide No.: 50 (ISO 100)Flash mode: M, S1, S2, LEDVertical rotation angle: -7 to 90 degreesHorizontal rotation angle: 0 to 270 degreesPower supply: 4 x AA batteries (not included)Lighting times: 100 - 1500 timesRecycle time: approx. 3sColor temperature: 5600kFlash time: 200s/min to 20000/minFlash control: 8 levels of output control, 29 levels of fine tuningExternal interface: hot shoe, PC portWireless triggering distance: 10 to 15mpower saving mode and overheating protection