DSTE Pro IR Remote MB-D14 Vertical Battery Grip for Nikon D610 D600 SLR Digital Camera as EN-EL15 Built in Infrared remote control function A firm, comfortable grip for vertical-position shooting with the Camera. Buttons and controls are conveniently placed and easy to reach for greater comfort. Holds one Li-ion batteries or six AA Battery for extended shooting When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation. Remaining power indicator