Neewer&reg; Professional Vertical Battery Grip( Replacement for Canon BG-E11) Work with 1 or 2 Pieces LP-E6 Battery or 6 Pieces AA Batteries for Canon EOS 5D Mark III / 5DS / 5DSR Digital SLR Cameras Compatible with EOS 5D Mark III / EOS 5DS / EOS 5DSR Powered by two Battery Pack LP-E6 or six AA-size/LR6 batteries(Batteries are Not included) Features a variety of operating controls such as shutter button, Main Dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button Idea for high volume and easy vertical shooting Note: Camera and batteries are Not included!