Biligo&reg; MB-D16 Multi Battery Grip/Power Pack for Nikon D750 DSLR Camera Compatible with Nikon D750 Camera. Magnesium alloy body, efficient seal designed to have the same high-D750 dust proof and waterproof performance. With easy vertical shooting shutter button, the shutter button lock lever, AE AF lock button, Multiple buttons, the main command dial, sub-command dial. Can be powered either by six AA batteries (Alkaline or Ni-MH or Lithium) or EN-EL15 rechargeable Li-ion batteries Sealing design to keep the water and dust penetrating,Vertical shot becomes as easy as horizontal shooting,Greatly provides the power for continuous shooting and improves your work efficiency