Equipped with the SE4770 imager, the Zebra RS51B0-TNNMWR delivers both 1D and 2D barcode capture in a wearable ring-scanner form factor weighing just 2.47 oz. Its compact body measures 2.4 in long, 1.1 in wide and 0.8 in deep, keeping the profile low enough for full-shift wear on a finger, the back of the hand or a lanyard. Class 1 Bluetooth provides wireless connectivity with a range up to 300 feet (91.44 m) from the host device, while NFC tap-pairing enables instant connection to compatible Zebra mobile devices. Symbology coverage spans Code 39, Code 128, Code 93, UPC/EAN, GSI DataBar, PDF417, DataMatrix, QR Code, Aztec, MaxiCode and OCR-A/OCR-B, among others. The RS51B0-TNNMWR carries REACH and RoHS environmental compliance and is backed by a 1-year limited warranty.