The Niimbot B21 is a versatile portable label printer featuring wireless Bluetooth connectivity for easy, on-the-go labeling. It prints sharp, self-adhesive labels at speeds up to 40ppm with a resolution of 203dpi. Compact and lightweight at 299g, it supports label widths from 20 to 50mm and is powered by a 1500mAh rechargeable battery with quick Type-C charging in 3-4 hours. Built with durable ABS material and available in red, green, and black, the B21 is ideal for labeling in industries like clothing, jewelry, supermarkets, food, and more, offering reliable performance for personal and professional use.