The Nikon MB-D16 Multi Power Battery Pack is a dedicated multi-power battery pack for the Nikon D750 DSLR that provides improved handling and extended battery life. With room for one additional EN-EL15 lithium-ion battery pack, or six AA batteries, extend the shooting life of your camera during a photo shoot. An improved grip allows for shooting in a vertical orientation and an improved ergonomically structure for holding the camera during shooting. With an additional shutter release button, AE/AF lock button, multi-selector and main/sub-command dials incorporated in the grips design, you have the ability to have an improved and natural handling experience.