CameraPlus - Professional MB-D16 Nikon D750 Battery Grip - Nikon MB-D16 Multi-Power Battery Pack for Nikon D750 DSLR Camera Vertical shot becomes as easy as horizontal shooting. The Replacement MB-D16 is equipped with a shutter release button, AE/AF lock button, multi selector, and main- and sub-command dials for improved operation when taking photographs in portrait orientation. buttons and custom buttons It can use EN-EL15 battery or 6pcs AA/LR 6 Alkaline Battery(Battery not inclued) Greatly provides the power for continuous shooting and improves your work efficiency Sealing design to keep the water and dust penetrating