Detailed Product Description 3.5" TFT Touch Screen 320*240 pixelsWindow CE 6.0 OS windtouchReceiver: GLONAV moduleCPU: SISIS 300MHZMemory: SDRAM 64MB/Flash EPROM 64MB, up to 2GBBuilt-in GPS antennaBuilt-in 1.5W loud speakerMini USB 2.0Expansion slot: SD card, MMC cardWith 3.5mm headphone jackBuilt-in rechargeable Li-ion 1100mAh batterySupport audio file format: MP3, WMA, AMR, ACC, AC3, AAC. ...