Solmeta Geotagger N3-a is camera GPS receiver & Shutter Release for Nikon D5, D500, D810A, D810, D800, D800E, D4S, D4, D3-series, D700, D300s, D300, D2X, D2XS, D2HS, D200 Compatible with Nikon GP-1 GPS Receiver, support Nikon D5, D4s, D4, D3-series, D810A, D810, D800, D800E, D500, D700, D300S, D300, D2x, D2xs, D2Hs, D200 It is a Solmeta GPS receiver with fixed SPIRAL cable connect to Nikon camera Built-in MTK3339 Chipset obtains quick GPS signals; Built-in 3-axis E-compass Power from Nikon camera directly, unique "wake up and sleep down" work mode following the camera operation to save battery, simple to use Indoor fixed function & Support remote trigger / shutter release