Polaroid Geotag GPS & Shutter Release Cord for Nikon D3X, D3S, D3, D700, D300s, D300, D2x, D2XS, D2HS, D200, D90, D7000, D5000, D5100, & D3100 Digital SLR Cameras Geotags your image files as you shoot Draws power from camera body battery no separate batteries or charging needed Indicator confirms when signal is available Compatible with most Nikon DSLR cameras Same features and functionality as the Nikon GP-1, but also includes handy remote release cord