We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cyan pocket-sized thermal label printer with Bluetooth

Nelko P21 Cyan Bluetooth Label Printer

SKU CH-QBCG-CSR0P

A compact Bluetooth thermal label printer producing 14×40 mm monochrome labels at 203 DPI from a pocket-sized 1.9×4.52×6.65 in device with 8 MB flash, a built-in rechargeable battery.

  • Memory size8 MB Flash
  • Interface typeBluetooth
  • Printing methodThermal
  • Cutter typePortable
  • RFID encodingPrint only, Thermal
  • Ribbon typeThermal, Thermal
  • Ultra-portable design fits in a pocket
  • 203 DPI thermal printing needs no ink or toner
  • Bluetooth connection to iOS and Android phones
  • Nelko app provides 3600+ icons, 750+ templates and 29 languages
  • Built-in rechargeable battery powers extended label creation

Pocket-Sized Bluetooth Label Printer

The Nelko P21 is a compact thermal label printer that connects to iOS and Android phones via Bluetooth. It uses direct thermal technology at 203 DPI to print black text on 14 mm wide labels without ink or toner. The device measures 1.9 by 4.52 by 6.65 inches and includes a built-in rechargeable battery for portable use.

Bluetooth-Only Mobile Interface

Printing is managed exclusively through the Nelko mobile app, which requires iOS 13 or later and is not compatible with Android 14 devices. The app provides 3600+ icons, 700+ borders, 5500+ materials, 750+ templates and 29 languages for label design. No computer connection or wired interface is supported, so all editing and print commands must come from a paired smartphone.

Replaces Bulky Desktop Label Makers

This printer suits users who need on-the-go labelling for classrooms, home organisation or small retail tasks and want to avoid the size and power requirements of traditional desktop units. It is not intended for high-volume continuous printing, wide-format labels, colour output or integration with PC-based inventory or shipping software.

How it compares

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

Price $29.99
Cheaper than about 85% of the 858 comparable items (median $84.99).
Memory size 8 MB Flash
Lower than about 80% of the 163 comparable items (median 0.06 GB).

Specifications

Product
Brand nameNelko
Product lineP21
Model nameP21
Part numberP21
Memory
Memory size8 MB Flash
Ports & slots
Interface typeBluetooth
Size & build
Product dimensions1.9 in × 4.52 in × 6.65 in
Compatibility
Accepted media sizes14 mm × 75 mm × 14 mm
In the box
In the boxLabels
More details
Printing methodThermal
Cutter typePortable
RFID encodingPrint only, Thermal
Ribbon typeThermal, Thermal
Media formatLabels
Media capacityLabels
Print dimensions14 × 40 mm

Questions about this item

Which label size does the P21 support for printing?

The P21 prints on 14 mm wide labels with a printable area of 14 x 40 mm, using rolls that measure 14 mm x 75 mm.

What does the 203 DPI rating mean for everyday label quality?

203 DPI gives sharp black text and simple graphics on thermal labels, ideal for address, barcode and organisation labels.

How does the Bluetooth connection work and what limits it?

Pairing is done inside the Nelko app on iOS 13+ or Android (except Android 14); the printer does not connect to computers.

More in Thermal Label & Receipt Printers

Similar items