The Dell 520 MHz Axim X51 packs style and impressive features in a sleek, sophisticated design. Powered by the Intel® XScale PXA270 Processor at 520 MHz, 64 MB SDRAM and 128 MB Flash ROM, the device offers excellent performance. This handheld comes equipped with the Microsoft® Windows® Mobile 5.0 operating system with Windows® Media Player 10 Mobile. It features an integrated CompactFlash Type II and Secure Digital / SDIO Now / MMC card slots for flexible expansion. It also includes 3.5 mm headphone / headset jack for headsets to support voice recognition applications. In addition, the built-in microphone and speaker ensure easy recording while you are on the go. The integrated Wi-Fi (802.11b) and Bluetooth wireless technologies offer flexible connectivity options.