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Compact black thermal label printer with Bluetooth, 321g

NIIMBOT

NIIMBOT B21 Bluetooth Label Printer 2 Inch 64MB 321g

SKU CH-ZY30-4SEJ5 MPN B21

Portable thermal label printer with Bluetooth, 64 MB memory and a 50 × 30 mm starter roll weighing 321 g

  • Memory size64 MB Flash
  • Interface typeBluetooth
  • Printing methodThermal
  • Cutter typeSmarter, simpler, smaller, portable, 1x 50 × 30 mm Roll of w
  • RFID encodingScan, Thermal
  • Ribbon typeThermal, Thermal
  • Bluetooth connectivity enables wireless printing from phones
  • 64 MB flash memory stores templates and fonts locally
  • Thermal technology prints without ink or toner cartridges
  • 321 g weight and 2.36 x 5.1 x 3.54 in size suit mobile use
  • 5 h charge delivers 4 h continuous printing time

Portable 2 Inch Thermal Label Printer

The NIIMBOT B21 is a compact thermal label printer that connects wirelessly via Bluetooth to iOS and Android devices. Weighing 321 grams, it is designed for mobile use and includes 64MB of flash memory for storing label templates. A single roll of 50x30mm white labels with 230 pieces is supplied in the box.

NIIMBOT App and Media Flexibility

The free NIIMBOT app provides over 1000 icons, 100 borders and 20 fonts, plus features such as image recognition, batch printing and serial number generation. The printer accepts thermal label tapes from 0.8 to 2 inches wide, including white, colour, transparent and cable cord styles. It is not compatible with iPad or other tablet devices.

Build, Battery and Connectivity

Measuring 2.36 by 5.1 by 3.54 inches, the unit fits easily in a bag and recharges fully in 1.5 hours to deliver four hours of continuous printing. A built-in cutter trims each label automatically after printing. PC use requires a separate driver download from the manufacturer website, while mobile operation relies solely on the Bluetooth link.

How it compares

Measured against everything we stock in Thermal Label & Receipt Printers, at today’s prices. Recalculated every night.

Price $81.99
Typical for this category: the median of 849 items is $84.99.
Memory size 64 MB Flash
Typical for this category: the median of 163 items is 0.06 GB.

New to this? Buying a printer and toner with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNIIMBOT
Product lineB21, 21
Model nameB21
Part numberB21-UK
Memory
Memory size64 MB Flash
Ports & slots
Interface typeBluetooth
Size & build
Product dimensions2.36 in × 5.1 in × 3.54 in
Product weight321 g
Compatibility
Accepted media sizes50 mm × 50 mm × 30 mm
More details
Printing methodThermal
Cutter typeSmarter, simpler, smaller, portable, 1x 50 × 30 mm Roll of white labels
RFID encodingScan, Thermal
Ribbon typeThermal, Thermal
Media formatLabels
Print dimensions50 × 30 mm

Questions about this item

How often will the thermal print head need cleaning or replacement?

The thermal print head has no moving parts and requires no scheduled replacement; wipe it with an isopropyl swab when print quality fades.

What stops a continuous print run first — battery or heat?

The battery delivers four hours of continuous printing after a 1.5 hour charge, so battery life is the first limit.

How hot or loud does the unit get during an all-day shift?

It runs silently with no fan and stays cool because thermal printing generates minimal heat.

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