This grip is specially designed for the Nikon D600 DSLR camera. It is equipped with an alternate shutter-release button, AF on button, multi selector, and main and sub-command dials for shooting in a vertical position. This power grip can hold one EN-EL15 rechargeable Li-ion battery, in addition to the camera?s internal battery or can use six AA batteries (alkaline, Ni-MH or lithium) to extend your shooting time.