The profoto b1x off camera flash is the successor to the award winning profoto b1 and is for the adventurous photographer who likes to get out there on location the profoto b1x 500 airttl location kit contains 2 b1x 500 airttl 2 x li ion battery mkii for b1b1x 1 battery charger 45 a incl power cable 1 x car charger 18 a 1 backpack m