Detailed Product Description 4.3 inches, 480×272 pelsCPU: Centrality Atlas 372MHzAtlas GPSOS: Microsoft Windows CE.NET 5.02G flash ROM, 64MB SDRAMQuickly and accurately fix positionMP3/MP4 format, pictures and text readingHumanized programming for right routeSpeech to hint information at any timeAspect size: 124mm*78mm*18mmweight:198gBluetooth FunctionFM Radio Transmit