... / Flash EPROM 64MB, up to 2GBBuilt-in GPS antennaBuilt-in 1.0W loud speakerMini USB 2.0Expansion slot: SD card, MMC ... cardWith 3.5mm earphone jackBuilt-in rechargeable Li-ion 1,300mAh batterySupport Audio file format: MP3, WMA, AMR, ACC, AC3 ...