The Vivitar BG-E16 Pro Series Multi-power Battery Grip allows the Canon EOS 7D Mark II to be powered by two LP-E6 batteries, effectively doubling its shooting capacity. The BG-E16 also provides a comfortable vertical grip with an additional shutter release button and scroll wheel for easy access to camera functions when shooting in the vertical orientation. With the included AA battery holder, users can also Power the camera with 6 AA batteries for added convenience. Key Features: Effectively double your shooting time. Holds either 2 LP-E6 batteries or 6 AA batteries. Vertical shutter button with M-Fn and dial. Vertical AF start button. Vertical grip AF point selector/Zoom button. Vertical grip AE lock button /index/reduce. Accessory wheel. Socket type mounting screw. Significantly improves stability.