The Nikon MB-D16 Battery Grip offers increased battery life and enhanced handling ability for your Nikon D750 DSLR camera. The multi-power battery pack accepts one additional EN-EL15 lithium-ion battery pack to increase battery life whilst facilitating more comfortable handling when shooting in portrait mode. An additional shutter release button, AE/AF lock button, multi selector, and main and sub-command dials are all featured into the grips design. These features help to attain more natural and intuitive handling. It is powered by six AA batteries via the D16 AA battery holder.