Neewer Vertical Shutter Release Battery Grip Work with EN-EL9/EN-EL9A Li-ion Batteries for Nikon D5000 DSLR Camera Brand New Pro Battery Grip for NIKON D5000. Hold 2 EN-EL9/EN-EL9A Li-ion batteries. Vertical shutter release function. More comfortable vertical shooting. Reduce camera shake. Doubling the battery capacity of your camera, effectively extend your shooting time. A tripod jack on the bottom of the grip for fixing it on a tripod firmly High quality product with big discount from the original one.