Features:It is specially designed for Nikon D7000 DSLR cameras.It is equipped with an alternate shutter-release button, AE-L / AF-L button, multi selector, and main and sub-command dials for shooting in a vertical position.It will effectively extend your shooting time and enable shooting in the same fashion as a horizontal grip.This battery grip can hold one EN -EL15 rechargeable Li-ion battery.Six AA batteries (Alkaline LR6, Ni-MH HR, or LithiumFR),can be used instead for more convenience.