BG-E8 Vertical Battery Grip BGE8 for Canon EOS 550D 600D 650D 700D Kiss X4 X5 X6i X7i Rebel T2i T3i T4i T5i Camera Compatible with: Canon EOS Rebel T2i T3i T4i / 550D 600D 650D DSLR Dimension: 131x79x108mm This battery grip can hold two LP-E8 batteries or six AA batteries. Equipped with a vertical-grip shutter button dial, AE lock/FE lock button, and AF point selector button to enable shooting in the same fashion as a horizontal grip In this professional edition, it comes with several functional buttons as the flash above showing