Nixxell NX-NBGD3100 Premium Replacement Battery Grip for Nikon D3100 D3200 D3300 DSLR Camera Vertical Shutter Release with lock. Compatible with the Nikon D3100 D3200 D3300 DSLR Cameras Extends your shooting time with 2 EN-EL14 Li-ion batteries Includes : Nixxell NX-NBGD3100 Battery Grip ( batteries not included ) 1 year Manufacturers warranty.