The Canon BG-E16 Battery Grip for EOS 7D Mark II DSLR Camera 9130B001 is specially designed to provide power for the camera and also excellent handling capabilities. Two LP-E6N lithium-ion battery packs can be used to provide the power. On the other hand, AA batteries can be used along with the BGM-E16 battery magazine. Moreover, the special design provides a better grip for shooting in the vertical orientation. The grip is also incorporated with improved functionality and utility buttons such as second shutter release button, main dial, multi-controller, AF point selection button, AE/FE lock button, AF start button, and multi-function button for the best utility of camera.