Offical SONY GPS 290 PSP-290 GPS Receiver with Case NIB

1.No software is included, this is for the GPS unit plus case only.
2.A little bigger than an average person's thumb, this little GPS receiver attachment is able to pinpoint your location anywhere in the world, within 5 meters accuracy.
3.Reception Frequency: 1575.42MHz (L1 ban, C/A code)
4.Reception System: 20 Channels
5.Reception Sensitivity: Following: -153dBm, Captured: -140dBm
6.Position Update Interval: Approximately 1 second
7.Position Precision: 5m (2DRAMS, -130dBm)
8.Hardware size: 45mm x 41mm x 17mm (Width x Height x Depth)
9.Weight: Approximately 16 grams
10.Brand new in retail box