NIIMBOT B21 Bluetooth Thermal Label Maker | Portable Sticker
NIIMBOT B21 Bluetooth Thermal Label Maker | Portable Sticker
NIIMBOT B21 Portable Bluetooth Thermal Label Printer
Meet the NIIMBOT B21 — a compact, wireless thermal label maker designed for home organizers, small business owners, boutique retailers, jewelry shops, and anyone who wants professional-looking labels on demand. No ink, no fuss. Just crisp, clear self-adhesive labels printed straight from your phone or PC.
Made in Mainland China.
Why You'll Love the NIIMBOT B21
- Truly Wireless & Portable: Built-in 1500mAh rechargeable battery charges fully in 3–4 hours via USB-C and powers up to 2 weeks of regular use. At just 299g and 130×94×61mm, it slips into a bag with ease.
- Bluetooth App Control: Connects wirelessly to Android and iOS smartphones via the free NIIMBOT app. Also supports USB-C wired connection to Windows/Mac PCs. (Note: not compatible with iPad.)
- Smart Label Recognition: Automatically detects sticker size — supports label widths from 20–50mm (up to 2"×6.7"). Compatible with continuous paper, gap paper, and transparent labels.
- Fast & Precise Printing: Thermal printing technology at up to 50mm/s with 203 DPI resolution means sharp barcodes, price tags, QR codes, and custom stickers every time.
- Powerful App Features: 30+ fonts, 100+ borders, 1,500+ symbols, 500+ industry templates, batch printing support, and image recognition — all within the intuitive NIIMBOT app.
- Versatile Use Cases: Perfect for clothing tags, jewelry labels, food/supermarket pricing, cable management, office organization, shipping labels, and more.
- Certified & Safe: CE, FCC, RoHS, KC, and WEEE certified for your peace of mind.
Key Specifications
| Model | NIIMBOT B21 |
| Battery | 1500mAh (included), USB-C charging, 3–4 hrs charge time |
| Print Technology | Thermal (no ink required) |
| Resolution | 203 DPI |
| Print Speed | Up to 50mm/s |
| Print Width | 20–50mm |
| Connectivity | Bluetooth (iOS & Android) + USB-C (PC) |
| Dimensions | 130 × 94 × 61mm | Weight: 299g |
| Voltage | 100–240V (universal) |
| Material | High-quality ABS |
| Certifications | CE, FCC, RoHS, KC, WEEE |
What's in the Box
- 1× NIIMBOT B21 Thermal Label Printer
- 1× Roll of self-adhesive labels (50×30mm, 230 pcs)
- 1× USB-C charging cable
- 1× User manual
Great For
Clothing boutiques, jewelry stores, supermarkets, home organization, small offices, food labeling, cable marking, barcode printing, price tags, and thoughtful gifting for holidays, Christmas, Thanksgiving, and seasonal celebrations.
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Learn more: Ready.gov emergency supply guidance
Frequently Asked Questions
Q: Is the NIIMBOT B21 label printer compatible with iPhone and Android?
A: Yes! The NIIMBOT B21 connects via Bluetooth to both iOS (iPhone) and Android smartphones using the free NIIMBOT app. It also supports USB-C wired connection to Windows and Mac computers. Note: it is not compatible with iPad.
Q: What label sizes does the NIIMBOT B21 support?
A: The B21 supports label widths from 20mm to 50mm (0.8" to 2"). The largest available label size is 50mm × 170mm (approximately 2" × 6.7"). It automatically recognizes label size and is compatible with roll-feed continuous, gap, and transparent label types.
Q: Does the NIIMBOT B21 require ink or toner cartridges?
A: No — the B21 uses direct thermal printing technology, which means no ink, toner, or ribbons are ever needed. Simply load compatible NIIMBOT thermal label rolls and print instantly.
Q: How long does the battery last on a single charge?
A: The built-in 1500mAh battery takes 3–4 hours to fully charge via the included USB-C cable and can power up to approximately 2 weeks of regular daily use, making it ideal for on-the-go label printing in stores, markets, or at home.
Q: What industries or uses is the NIIMBOT B21 best suited for?
A: The NIIMBOT B21 label maker is ideal for clothing and apparel tagging, jewelry labeling, supermarket price tags, food and fresh produce labeling, cable and equipment marking, home organization, office filing, barcode and QR code printing, and small business retail operations.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.