The Flash Bar 2 by MiNT for Polaroid SX-70-Type Cameras is a re-usable high quality electronic flash bar device for all Polaroid folding (including the Sonar models) and box-type SX-70 cameras and optimized for use with Polaroid film. 

The special ND-compensation mode allows usage of film for 600 type cameras in these cameras. It is delivered with colour filters in hot pink and chartreuse. Brand-new batteries and a user manual are also included in the box. 

The camera shown in the image is not included with the flash bar!