The Phottix BG-D90/D80 Battery Grip is compatible with Nikon D80 and D90 DSLR Cameras. The battery grip features room for two camera batteries and a tray for six AA batteries. Never run out of power while on location or in the studio. Phottix battery grip is equipped with vertical shutter buttons and camera control buttons. Shoot vertical without losing easy access to camera functions buttons. The Phottix battery grip is a stylish and useful addition to photographers' gear bags.