Niimbot B21 Mini Portable Thermal Printer Bluetooth Label

Meet the Niimbot B21 Mini Portable Thermal Printer — a compact, battery-powered Bluetooth label maker that delivers crisp labels without ink, toner, or carbon tape. Designed for on-the-go labeling across retail, offices, and workshops, it pairs with the free NIIMBOT app for effortless label creation right from your smartphone.

Compact, portable, and powerful

• New version: half the size and weight of traditional label makers for easy carrying anywhere.
• Free gift: includes a 50 × 30 mm label paper roll inside the machine when you buy.
• Eco-friendly and cost-saving: thermal printing means no ink, toner, or ribbons—just replace paper.
• Built-in battery: 1200mAh rechargeable battery supports up to 4 hours of continuous use per charge.
• Bluetooth connection: wireless printing with reliable range for iOS and Android.
• App-driven customization: pair with NIIMBOT app to create labels, access automatic templates, image recognition, batch printing, 20+ fonts, and thousands of images.
• Exquisite design: vintage-inspired look, lever for easy opening, USB dust plug, anti-slip bottom — mini and portable for every bag or pocket.

Technical specs

• Material: ABS
• Product size: 130 × 94 × 61 mm
• Net weight: 299 g
• Colors: White, Black
• Charging interface: Type-C
• Printing technology: Thermal
• Print width: 20–50 mm; Max paper size 50 mm
• Print resolution: 203 dpi
• Battery: 1200 mAh rechargeable
• Charging time: 3–4 hours
• Voltage range: 100–240 V
• Print speed: 8 ppm
• Interface: Bluetooth
• Applicable industries: Clothing, jewelry, supermarket, fresh food, medicine, food, cables, and more

Contents and compatibility

• What’s in the box: LabelMaker, User Manual, Type-C Cable, Gift: 1 Roll Paper 50 × 30 mm (230 pieces inside the machine)
• Widely used: Supports 20–50 mm width labels for a wide range of applications: clothing, jewelry, groceries, medicine, and more.

How it works

The B21 uses thermal printing to produce clean, durable labels on the go. Connect via Bluetooth to the NIIMBOT app to design labels with automatic templates, image recognition, and batch printing. Choose from 20+ fonts and thousands of image materials to tailor labels for your products, shelves, or assets.

Reasons to choose Niimbot B21

• Portability: compact size and light weight fit in any bag.
• Cost savings: no ink or toner required.
• Time savings: app-based templates and batch printing streamline labeling.
• Reliability: robust Bluetooth connection and long-lasting battery.