Key Specifications/Special Features: Supports HF RFID Supports Wi-Fi, communicate with LAN by wireless network Outdoor user can keep in touch with headquarters at any time by GPRS Integrated long range laser bar code scanner Handwritten input and supports signature capture function Industry IP54 hardware design and can be used in harsh environment Good performance and cost-effective Processor: Samsung 400MHz CPU Memory: ROM 128MB, RAM 128MB SDRAM (expandable by SD card slot with maximum capacity to 1GB) Screen: 3.5 inches QVGA (240 x 320 pixels) color (transflective TFT LCD with LED backlight) Keypad: 25/1 digital backlight keypad (soft keys, supports handwritten input) Standard battery: 3.7V, 2,800/3,200mAh Li-ion battery (inside backup battery: 17mAh) Standard communication: USB 1.1, RS232 Wi-Fi: IEEEE802.11b/g, 11 to 54Mbps (built-in) GSM/GPRS communication: 900/1800/1900MHz