Can I use third-party labels with the B21?

B21 uses RFID technology to automatically identify compatible NIIMBOT label rolls, including label size and other label information. Third-party labels without a compatible RFID chip may not be recognized correctly, which can affect automatic label detection, positioning, and printing. For the most reliable experience, we recommend using NIIMBOT B21-compatible label rolls.

Why is my B21 label printing off-center or crooked?

First check that the roll is seated correctly, the guides are aligned, and the app has recognized the correct label size. Reinstalling the roll and confirming the media specification usually resolves positioning issues.

What label sizes work with the B21?

B21 is designed for compatible labels about 0.8–2 inches (20–50 mm) wide. Choose the label size according to the object and amount of information you need to print.

Are B21 labels waterproof and durable?

Many official B21-compatible labels are waterproof, wipeable, tear-resistant, self-adhesive, and abrasion-resistant, making them suitable for use on various clean, smooth, and dry surfaces; however, specific durability depends on the chosen label material, and actual adhesion performance is influenced by factors such as material type, temperature, humidity, and the type of adhesive used.

Does the NIIMBOT B21 need ink or toner?

No. B21 uses direct thermal printing, so it does not require ink, toner, or a carbon ribbon. The main consumable is compatible thermal label paper.

Is B21 Kitchen suitable for both everyday home organization and high-volume professional use?

Yes. B21 Kitchen is flexible enough for both everyday home use and more demanding professional workflows. At home, it makes it easy to organize pantry items, ingredients, leftovers, meal-prep containers, and refrigerator storage. For catering, meal-prep businesses, private chefs, and professional kitchens, its fast thermal printing, reusable templates, and batch labeling capabilities make it practical for labeling larger quantities of prepared food, ingredients, dates, and storage information efficiently and consistently.

Can I print from mobile phones, tablets, and computers?

Yes. B21 supports printing from smartphones and tablets via the NIIMBOT app on iOS and Android. It can also be used with Windows and Mac computers through NIIMBOT desktop software. This gives you the flexibility to create quick labels on mobile devices or design and manage labels on a larger screen.

What is the main difference between B21 Pro and B21?

B21 is the better fit for everyday text, barcodes, QR codes, logos, and organization labels. B21 Pro upgrades the resolution to 300 dpi and is better suited to fine graphics and photo-style labels.

NIIMBOT B21 Bluetooth Thermal Kitchen Storage Labels Printer, Efficient for Home, Support PC&Phone

Name: NIIMBOT B21 Bluetooth Thermal Kitchen Storage Labels Printer, Efficient for Home, Support PC&Phone
Brand: NIIMBOT
SKU: 1AC1305200D
Price: 59.39 $
Rating: 4.875 (8 reviews)

$59.39Save 26%

List Price: ~~$79.99~~

Thermal printing technology, toner&carbon tape free
1 roll of 50x30mm white labels inlcuded
Compatible with Android and iOS devices
Auto-identify the label paper, print labels in width 0.8''-2''
Offers fonts, icons, frames and ready-to-edit templates
Long-lasting, waterproof, wipeable, tear-resistant, self-adhesive, abrasion-resistant, and BPA free

Color

Set

Quantity

Thermal printing technology, toner&carbon tape free
1 roll of 50x30mm white labels inlcuded
Compatible with Android and iOS devices
Auto-identify the label paper, print labels in width 0.8''-2''
Offers fonts, icons, frames and ready-to-edit templates
Long-lasting, waterproof, wipeable, tear-resistant, self-adhesive, abrasion-resistant, and BPA free

Technical Specifications

Product size: 130*94*61mm
Effective printing width: 48mm
Print height: 8-200mm
Product weight: 322g
Print speed: max50mm/s
Paper feed type: Gap, transparent, black mark, continuous paper
Battery capacity: 1500mAh
Charging port: Type-C (includingdualC)
Rated input: 5V 1A
Printing method: Thermal
Connection method: Bluetooth/USB
Operating temperature: 0-45°C
Printing resolution: 300dpi
Label paper width: 20-50mm
Transmit power: 4dBm(Max)
Operating frequency: 2400MHz-2483.5MHZ

NIIMBOT B21 Bluetooth Thermal Kitchen Storage Labels Printer, Efficient for Home, Support PC&Phone

Compatible Labels

Colorful Thermal Label Paper for B21, B1 & B3S

NIIMBOT White Label Paper for B Series Label Printers

NIIMBOT Jewelry Label Paper, White & Amber, Compatible with B21, B203, B1, B3S, B31 & B4

Photo Thermal Label Paper Only for B21 Pro, B1 Pro, B2 Pro

NIIMBOT Cable Labels | B21, B203, B1, B3S, B31, B4

Label Tape Set for B21, B1, B3S

Large Label for B4

Round Label Tape for B21, B1, B3S

Jewelry Label for NIIMBOT Label Printer Suitable for the jewelry business, custom labels

Red&Black Labels Only for B21 Pro, B1 Pro, B2 Pro

Clear Label Tape for B1, B21, B3S, B31, B4

Technical Specifications

Frequently Asked Questions

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NIIMBOT B21 Bluetooth Thermal Kitchen Storage Labels Printer, Efficient for Home, Support PC&Phone

Compatible Labels

Features

Technical Specifications

Frequently Asked Questions

Can I use third-party labels with the B21?

Why is my B21 label printing off-center or crooked?

What label sizes work with the B21?

Are B21 labels waterproof and durable?

Does the NIIMBOT B21 need ink or toner?

Is B21 Kitchen suitable for both everyday home organization and high-volume professional use?

Can I print from mobile phones, tablets, and computers?

What is the main difference between B21 Pro and B21?

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