Yongnuo GPS Receiver N-918 N3 For Nikon D90 D3100 D5000 Nikon GP-1 Compatible * Adopting high quality USA chipset (SIRF Star III), has low power function with GPS mode * High performance lithium polymer battery allows quick start of the chipset * It can tracks many satellite position accurately, up to 1-5meters * 2.5mm shutter release jack for connecting to DSLR Compatible cameras:* Nikon D90, D3100, D5000, D5100, D7000 are fitting to the included shutter release cord, all Nikon GP-1 compatible cameras are fitting the Yongnuo N-918 GPS receiver