Neewer NW985C ETTL 4-Color TFT Screen Slave Flash Speedlite Kit for Canon DSLR Camera,Include:(1)NW985C Flash+(1)Mini Diffuser Cap+(1)35-piece Color Gel Filter+(1)Wireless Remote Trigger+(4)LR Battery Powerful Flash with High Guide No.58(ISO 100, 180mm). High-speed sync up to 1/8000th of a second. Ultra-fast 2.9 second full-discharge recycle time. Features voice prompt, custom function, power save mode, overheating protection, automatic save function. 35 pieces color gel filters for lighting effects and color correction. The remote trigger for studio flashes and outdoor flash is used as the controller of synchronous trigger studio flash of cameras. It consists of a signal sender and a receiver trigger and works by means of the frequency modulation wireless remote control. Kits include:(1)NW-985C+(1)Universal Mini Flash Bounce Diffuser Cap+(1)35-piece Color Gel Filters+(1)16 Channels Wireless Remote Flash Trigger+(4)LR Battery