Recently Motorola showed its new rugged communicator. The case of Motorola ES400 protects this device against moisture, scratches, stress, dust, temperature difference. Os for technical specifications it is known that this smartphone runs on Windows Mobile 6.5.3 Professional and is equipped with 600 MHz Qulacomm MSM7627 processor, 3 inch touch screen with 640x480px resolution, 3.2 Mp camera with autofocus, 256 MB RAM, 1 GB internal memory, accelerometer, GPS, Wi-Fi (802.11a/b/g), Bluetooth 2.0 with EDR, MicroSD external memory card slot. Supported networks standards are GSM/GPRS/EDGE 850/900/1800/1900 MHz, UMTS/HSDPA 850/1900/2100 MHz.