Fitted with the SE4770 2D imager and single-sided wearable design, the Zebra RS51B0-TESNWR is a wireless Bluetooth ring scanner weighing just 2.47 oz and measuring 2.4 in long by 1.1 in wide by 0.8 in deep. Class 1 Bluetooth wireless connectivity allows operation up to 300 feet/91.44 m from a host device, while NFC tap-to-pair supports instant connection with compatible Zebra devices. The SE4770 engine reads a broad symbology set spanning 1D formats — Code 39, Code 128, Code 93, UPC/EAN, GSI DataBar, and I 2 of 5 among them — as well as 2D formats including PDF417, DataMatrix, QR Code, Aztec, and MaxiCode, plus OCR-A and OCR-B. A modular two-piece trigger assembly separates from the scanner body for individual assignment per worker. REACH and RoHS compliant, the RS51B0-TESNWR is backed by a 1-year limited warranty.