Neewer&reg; 2.4G Wireless HSS NW880C E-TTL II Master/Slave Flash Speedlite Kit for Canon DSLR Cameras,Kit Include:1*NW880C+1*FT-16S Trigger(Transmitter+Receiver)+1*Universal Mini Softbox Diffuser High Guide No.: 60(m ISO 100,@200mm). Super fast Recycle time:approx. 0.1-2.6s Various Flash mode:E-TTL II,Master,Slave,Off,Multi,M,S1/S2.Supports Optic transmission and 2.4G transmission Wireless Flash Trigger can set power ratios of up to 16 groups of remote flashes Softbox Diffuser disperses the light over a wider area for a softer, more balanced and natural effect than you didn't use before Kit includes:1 x NW880C E-TTL II Flash+1 x Wireless FT-16S Flash Trigger Set+1 x Universal Softbox