THERMAZA D400 Bluetooth Thermal Label Printer, 4 × 6 in

The THERMAZA D400 Thermal Label Printer is a compact monochrome thermal printer listed with Bluetooth and USB connections for 4 × 6-inch shipping labels. It suits home businesses and small dispatch workflows that need label printing rather than a general-purpose printer.

At a glance

Direct thermal printing is presented as ink- and toner-free, avoiding those consumables.
Bluetooth and USB are listed, with USB specified as the hardware interface.
The listing identifies 4 × 6-inch shipping labels as the target media size.
The description claims compatibility with Windows and Mac and support for major e-commerce and shipping platforms.

Price

$110.49Save 15%

Reference price: ~~$129.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Monochrome thermal printing avoids ink or toner according to the listing.
Bluetooth and USB offer two listed connection options.
The stated 4 × 6-inch maximum media size matches a common shipping-label format.

Cons

Print-only functionality limits the device to printing rather than copying or scanning.

Technical specifications

16 specifications

Identity
Brand	THERMAZA
Model	Thermal Label Printer
Model number	D400

Printing
Technology	Thermal
Output	Monochrome
Resolution	203 x 203 dpi
Listed print speed	160
Media	Labels, Thermal Paper
Maximum media size	4 x 6 inches
Paper size	4X6
Print functions	Print Only

Connectivity and controls
Wireless connection listed	Bluetooth, USB
Hardware interface	USB

Dimensions and installation
Dimensions listed	8D x 18W x 8H centimetres
Portable	Portable

Other
Warranty description	1 year warranty

What to know before buying

Listing details to confirm

The listing is inconsistent about colour, describing the printer as black in the title and one included-items description but white in the product details and another contents list. Its listed speed of 160 has no unit, and the dimension entry is stated as 8D x 18W x 8H centimetres. The specification gives a 4 x 6 inches maximum media size while the description says print size 30mm-110mm. Confirm the colour, speed unit, dimension orientation and supported media range for the selected listing before purchase. The stated one-year warranty is a listing claim.

What’s in the box

THERMAZA D400 Thermal Printer (White)Check selected pack
Power adapterIncluded
USB CableIncluded
User manualIncluded

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Small online sellers printing 4 × 6-inch shipping labels over Bluetooth or USB.
Home offices seeking a compact, print-only thermal label device.
Buyers who primarily need monochrome shipping or inventory labels.

Less suited to

People needing colour printing, scanning or copying.
Buyers who require a confirmed print speed or precise media-width range before choosing.

THERMAZA D400 Bluetooth Thermal Label Printer, 4 × 6 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 2 ratings

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The available aggregate rating is entirely five-star, but it represents only two ratings and provides no written customer feedback. That small sample cannot establish how consistently the printer performs. Buyers should judge fit against the listed monochrome output, 203 x 203 dpi resolution and 4 × 6-inch media claim.

Frequently asked questions

Does the THERMAZA D400 support Bluetooth?

Bluetooth and USB are both listed as connectivity options. USB is also identified as the hardware interface.

What label size is listed?

The maximum media size is listed as 4 x 6 inches, while the description separately states a print size range of 30mm-110mm. Check the range supported by the particular listing.

Is this a colour printer?

The output is listed as monochrome. The product colour is inconsistent across the listing, which alternately describes it as black and white.

What comes in the box?

The explicit contents list names the printer, a power adapter, a USB cable and a user manual. Another listing description gives a conflicting printer colour, so confirm the selected version.