UHF Bluetooth RFID Sled Reader: Gun FF, 4410mAh 3.7Vdc, US freq band. You get unparalleled enterprise-class performance%u2014 workers can capture tags and bar codes faster and with ease, improving productivity, operational efficiency and customer service. It%u2019s easy to use %u2014 workers can simply tap on a button to switch between RFID and bar code scanning modes on the fly. You get flexible deployment options to meet your specific business needs.. Permanently attach to a compatible mobile device to create a dedicated inventory management device. Temporarily attach to enable RFID when and where you need it on the mobile device of your choice, bringing comfort to inventory management tasks; deploy as separate devices %u2014 workers can put the host mobile computer in a pocket or on a desk to protect the device and create a lighter RFID solution.. Our unique power-optimizing algorithm delivers the superior battery cycle times that ensure full-shift power, even with intensive usage. Bluetooth® connectivity provides a real-time wireless connection to your applications.. And if a wireless connection is not available, support for batch mode keeps your workers productive. With our powerful Zebra Easy Text Interface (ZETI), enabling the capture of RFID tags and bar codes couldn%u2019t be easier. ZETI enables the RFD8500 to communicate directly with the host %u2014 no need to create an actual application.