... Visual Studio 2005&2008 or higher.SDK providedScreen: 3.2" QVGA backlight TFT-LCD, 65 K colors ... and transparent typeBattery: Rechargeable li-ion polymer battery (3.7 V/4,000 mAh) Expansion slots: SIM/SAM/Micro ... (850/900/1800/1900 MHz) Bluetooth: Class II, 3-5 MPSAM: 9600, 19200, 38400, 43000, 56000, ... 115200 Baud rateGPS: u-blox NEO-5QCamera:Samsung 3.2 mega pixelsCan built-in RFID card reader, ...