Detailed Product Description Basic parametersModel: R300Processor: Samsung, 400MhzMemory: 64MB SDRAM +128 MB FlashROM / scalable SD, MMC cardAntenna: Built-in antenna, external antenna can beData Interface: USB 2.0 interface, Bluetooth, SD / MMC compatible expansion slot (up to support SD expansion cards to 4GB)OS: WIN CE, 5.0Screen parameterScreen size: 3.5 inchesScreen Features: 65535-color TFT ...