Compatible Cameras: Type-A EOS cameras (E-TTL II/E-TTL autoflash) | Number of Flashes: Approx. 180-1200 flashes (with size-AA/LR6 alkaline batteries) | Dimensions: Approx. 2.78 x 4.48 x 3.87 in./70.5 x 113.8 x 98.2mm | Weight: Approx. 10.41 oz. / 295g