NIIMBOT B21 Pro 50mm - label printer

The NIIMBOT B21 Pro Portable Label Printer is a direct thermal printer that produces monochrome labels without ink or toner. It prints at 300 DPI, producing clear text and barcodes suitable for identification, storage, and product marking. Print speed reaches up to 50 mm per second. The printer takes label media from 20 to 50 mm wide, with a maximum print width of 50 mm, covering most standard label sizes for home, office, and retail use.

Connectivity is via Bluetooth 4.0 for wireless pairing with smartphones and other compatible devices, plus a USB Type-C port for a wired connection. A 1500 mAh rechargeable battery powers the printer, allowing it to run without a mains outlet. At 321 g and 130 × 94 × 62 mm, this green label printer is light enough to carry in a bag or store in a drawer between uses. The rechargeable battery and dual connectivity options make it practical for anyone who needs to print labels from a mobile device rather than a desktop workstation.

• Direct thermal technology — eliminates the need for ink cartridges or toner.
• 300 DPI maximum resolution — renders legible small text and scannable barcodes on narrow media.
• 20–50 mm supported media width — compatible with a range of standard continuous label rolls.
• Bluetooth 4.0 wireless connection — prints directly from a paired smartphone or tablet.
• USB Type-C wired interface — provides a fallback connection to a computer or charger.
• 1500 mAh rechargeable battery — supports cordless operation for portable labelling on the go.
• 321 g weight at 130 × 94 × 62 mm — compact enough to carry between workspaces.