Profoto Air Remote to control your Pro 8a Air packs and heads through Profoto’s specifically designed digital radio system from as far away as 300 m (1000 ft). Complete flash control on your camera hotshoe or in your hand, including the power to the heads, turning heads on and off, and adjusting model lights. Handles an unlimited number of packs and heads clustered in up to six groups on eight channels. Much faster Sync than Pocket Wizard, up to 1/1600 sec – Need only 1 unit per set.