Enjoy powerful on- and off-camera flash capabilities with the Di700A Flash Kit with Air 1 Commander from Nissin. Bundling together the Nissin Air System-capable Di700A Flash with its 177' guide number at ISO 100 and 200mm with the Air 1 Commander, users will easily be able to transition from on- to off-camera lighting and maintain full control of their lights along with Canon E-TTL / E-TTL II capabilities. The Nissin Air System utilizes 2.4 GHz radio transmission with a 98' range to grant reliable wireless triggering without need for line-of-sight. Also, the Commander can control the power and zoom settings for flashes in 8 channels and 3 groups as well as transmit exposure compensation settings from -2 to +2 EV.