NULLTONEX Y813 Thermal Label Printer, 4×6 Bluetooth/USB

The NULLTONEX Y813 Thermal Label Printer is a monochrome thermal printer listed for 4×6 shipping labels, with Bluetooth and USB connectivity. It may suit small shipping workflows that need ink-free label printing, but the advertised speed and app capabilities are manufacturer claims.

At a glance

Direct thermal printing is described as requiring no ink or toner.
The listing describes Bluetooth printing through the FlashLabel Pro app and USB connection to a computer.
The stated media range includes standard 4×6 shipping labels and narrower labels.

Price

$56.54Save 10%

Reference price: ~~$62.90~~

Price checked: Nov 11, 2026

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Pros and cons

Pros

Ink- and toner-free printing avoids those consumables for routine label output.
Bluetooth and USB connection options can accommodate phone-based or computer-based workflows.
The stated 1.57" to 4.3" label-width range covers more than standard 4×6 shipping labels.

Cons

Monochrome output is limited to black-and-white labels, not color printing.

Technical specifications

13 specifications

Identity
Brand	NULLTONEX
Model	Y813 Thermal Label Printer

Printing
Printing technology	Thermal
Printer output	Monochrome
Print resolution	203 DPI
Listed maximum speed	72 labels per minute

Connectivity and controls
Wireless connection listed	Bluetooth, USB, wireless
App	FlashLabel Pro

Media and compatibility
Supported label width	1.57" to 4.3" wide
Standard shipping label size	4"×6"
Listed platform and carrier compatibility	Amazon, Shopify, Etsy, USPS, UPS, FedEx, and DHL

Physical details
Color	Black
Weight listed	1.2 pounds

What to know before buying

Listing details to confirm

The listing gives a speed of 72 labels per minute in one feature claim but also describes 150mm/s and 72 pages per minute in the details, these measures and claims are inconsistent, so confirm the applicable label-printing speed before relying on throughput estimates. The listed 4×6 size and width range are manufacturer claims.

Who is it for?

A good fit for

Small businesses printing monochrome shipping labels from a phone or computer.
Users who want a thermal label printer for 4×6 labels and other supported widths.

Less suited to

Users who need color output or a general-purpose document printer.
Buyers whose workflow depends on a confirmed print-speed target.

NULLTONEX Y813 Thermal Label Printer, 4×6 Bluetooth/USB · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 2,284 ratings

5 stars77%77%
4 stars7%7%
3 stars4%4%
2 stars2%2%
1 star10%10%

The supplied evidence includes an aggregate rating of 4.4 out of 5 stars, but no review count or written customer feedback. That figure alone does not show what buyers liked or disliked, or how the printer performs in a particular shipping workflow.

Frequently asked questions

Does the NULLTONEX Y813 print in color?

No. The listing identifies its output as monochrome and says it prints in black and white only.

What label sizes does it support?

The listing specifies standard 4×6 labels and a supported width range of 1.57" to 4.3".

Can it connect to a phone and a computer?

Bluetooth connection through the FlashLabel Pro app is described for phones, while USB is described for laptops or PCs.

What print speed should I expect?

The listing's speed statements conflict: it gives 72 labels per minute, 150mm/s, and 72 pages per minute. Confirm which figure applies to your intended labels before purchasing for a high-throughput workflow.