The NiiMbot B21 is a compact, wireless thermal label printer designed for efficient barcode and adhesive label printing. Equipped with Bluetooth connectivity, it delivers sharp prints at speeds up to 40ppm with a 203dpi resolution. Lightweight at 299g and built with durable ABS material, it supports label widths from 20 to 50mm. Powered by a 1500mAh rechargeable battery with Type-C charging in just 3-4 hours, the B21 is ideal for commercial use in industries such as clothing, jewelry, supermarkets, fresh food, medicine, and more, providing reliable and professional labeling on the go.