High Sensitivity Receiver Hot Start :< =5sec. Warm Start :< =38sec. Cold Start :< =45sec                                                 Satellite Reacquisition  Time Accuracy: 100 Ms Position Accuracy: Up To 3m Possible GPS frequency 1575.42MHZ Senility -156dBm Number of channels 24 Accuracy and velocity <10 meter, 0.1m/s Real built-in antenna CPU: Centrality 300mhz, AT440 Processor Memory: 64MB SDRAM Built-In 128Mb (NAND flash) USB Client For Active Synchronization SD memory Slot，SD upto 2GB 3.7V, 1400 mAH Li-Ion  rechargeable  Battery especially for GPS 5V DC Power Jack 120/230V universal AC/DC adapter 12VDC to 5VDC 2A Microsoft Wince.NET5.0 Core Version MP3, Movie, Photo and E-Book