GPRS/ GPS, WIFI,Bluetooth(Optional) 1D or 2D bar code scanner module (Optional) Windows CE 5.0 operation system 2 ... 0 + EDR; IrDA; EDGE/GPRS Module (Optional); WIFI Module (Optional); GPS Module(Optional)Display3.5QVGA (backlight), TFT-LCD 256K, ... from three directions on six surfaces.Voice FrequencyBuilt-in speaker, microphone and earphone connectorInternational ProtectionIP65, (IEC60529 standard) ...