Enjoy powerful on- and off-camera flash capabilities with the Nissin Di700a Flash with air 1 commander. 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. 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.