Configured as a back-of-hand mount unit, the Zebra RS51B0-TBBHWR is a wireless wearable ring scanner weighing 2.47 oz in a body measuring 2.4 in long, 1.1 in wide, and 0.8 in deep. Its SE4770 imager reads both 1D and 2D symbologies, covering Code 39, Code 128, Code 93, UPC/EAN, GSI DataBar, and I 2 of 5 in the 1D range, plus PDF417, DataMatrix, QR Code, Aztec, MaxiCode, Micro QR, and Chinese Sensible (Han Xin) in 2D, with OCR-A and OCR-B also supported. Class 1 Bluetooth enables wireless operation up to 300 feet/91.44 m from the host device, and NFC tap-to-pair is supported for compatible Zebra devices. The two-piece modular trigger assembly separates from the scanner body, and multiple rear LEDs provide directional feedback during navigation workflows.