Powerextra MB-D80 Battery Grip for Nikon D80/D90 Camera Work with EN-EL3e battery or 6 AA-size battery Quick release battery grip can hold 2 pcs EN-EL3E battery backup or 6 pcs AA-size batteries, doubling the battery capacity for extending more shooting time A tripod socket on the bottom of the grip can be mount on a tirpod, easy install and uninstall, horizontal and vertical shutter fit different shooting experience Same function on the grip as the camera, not affected any function of the original camera MB-D80, Feature a variety of operating control: shutter button, Main Dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button Support remote control, the distance can reach 10 meter in the open space Battery grip for NIKON D80 D90 camera with infrared remote control deviceer the shutter