For sale is a Nikon GP-1 GPS receiver that interfaces with Nikon DSLRs that have the input connector to provide GPS data used for geotagging your images. Comes with the interface cable. Can also be used with PC's through a mini USB connector. Works fine, you just need to make sure your camera can use it. I used it with a D3200 and it worked fine but you have to be careful about turning it off when not using it to save battery life. Price is firm, Cash, PayPal, Venmo or Zelle, pickup only in Burlington or Woburn. If you bring your camera we can test it to make sure it works. MAKE SURE THIS IS WHAT YOU WANT because all sales are final and I do not do "buyer's remorse."