Zebra Workabout Pro 4 Mobile Compter: Give your workers the mobile computer that can continually evolve to meet your ever-changing business needs with the Workabout Pro 4. Its impressive modularity lets you buy the features you need now, and easily add practically any feature you can imagine, right in your own facility. Start with Wi-Fi and add WWAN. Swap scan engines to support new types of barcodes. Add support for voice picking applications and just about any type of RFID tag. Many ready-to-use modules are available to meet the highly specialized needs of diverse vertical markets. And since the Workabout brand has been serving businesses for over 20 years, you can choose the well-proven Workabout Pro 4 with confidence.