Geotagger Pro2-d is camera GPS receiver for Nikon D810, D800, D800E, D4, D3-series, D700, D300s, D300, D2x, D2xs, D2Hs, D200 LCD with backlight displays all major GPS information in real time. Built-in 6-axis (3-axis compass plus 3-axis acceleration sensor) to provide accurate shooting direction. All GPS and direction data can be transfered to Nikon camera and be added into the image's EXIF. Built-in 2GB flash memory, it can be used as a GPS tracker & logge. GPS log data can be easy to download like an USB disk on PC or Mac. Supply a 2.4GHz wireless shutter remoter which support "Bulb Exposures" function. Built-in a high accuracy Real Time clock within 0.1 sec. Build in Li-ion battery, when use out of the inside battery, it get camera's power as backup.