Introducing Zebra's ZQ511 and ZQ521 RFID Mobile Printers that deliver on-demand, on-the-go UHF RFID printing engineered for the toughest environments. With the ZQ511 and ZQ521, you can print and encode Ultra High Frequency (UHF) RFID labels on-demand, anywhere. The ZQ511 and ZQ521 are engineered for tough, demanding indoor and outdoor conditions and can withstand significant drops, tumbles, accidents and environmental extremes that are common in mobile workplaces. The ZQ511 and ZQ521 are optimized for on-demand receipt printing in 3" and 4" print widths and also print a variety of labels including UHF RFID tags for all your tracking needs. Gain visibility and manage your ZQ500 Series Bluetooth printers inside and outside your four walls with Zebra's Bluetooth Management.