# MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer

The MUNBYN RW403B is a monochrome thermal label printer with Bluetooth and USB connections, intended for 4 × 6-inch labels. Bluetooth is listed for computers, Chromebooks and mobile devices, while USB is listed for Windows and macOS.

- [Original product page](https://bargainpostbox.co.uk/product/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [View offer](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: MUNBYN
- Model: RW403B
- Category: Computers > Printers / 3D & Scanners > Printers / 3D & Multifunction
- Price: 69.98 GBP
- Previous price: 94.99 GBP
- Discount: 26%
- Price checked: 2026-11-12T14:58:29.942Z
- Rating: 4.2 / 5
- Reviews: 584

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Thermal monochrome printing avoids the need for ink, according to the listing's No Ink specification.
- Bluetooth connectivity is listed for Windows, macOS, ChromeOS, Android and iOS. USB is listed for Windows and macOS.
- The listed 4 × 6-inch maximum supported paper size suits common shipping-label dimensions.
- Customer feedback mentions quick printing and straightforward setup, but also mixed experiences with whether the printer works.

## Pros

- Bluetooth options cover desktop and mobile operating systems, with USB also listed for Windows and macOS.
- Compact listed dimensions and 1.3 kg weight may suit a small packing or home-office space.
- The explicit package contents list includes 30 sheets of white labels.

## Specifications

### Identity
- Brand: MUNBYN
- Model: RW403B
- Colour: White
- Printing technology: Thermal
- Output: Monochrome
- Print functions: Print Only
### Connectivity and controls
- Connections listed: Bluetooth for Windows, macOS, ChromeOS, Android, and iOS; USB connection for Windows and macOS
- Control method: App
- Hardware interface: Bluetooth
### Printing and media
- Resolution: 203 DPI
- Maximum supported paper size: 4 x 6 inch
- Print media: Labels
- Duplex: Simplex
- Maximum print speed, monochrome: 150
- Initial page print time: 1 Seconds
### Dimensions and installation
- Dimensions: 9.1D x 18.6W x 9.2H centimetres
- Weight: 1.3 Kilograms
### Warranty
- Product warranty: 2 years

## Before you buy

- The listing's 150 print-speed figure has no unit, so it cannot be interpreted as a confirmed pages-per-minute or labels-per-minute rate. The one-second initial print-time figure is also listed without further operating context.
- The listing claims a 970,000-label lifespan, a jam rate below 0.01%, and 99.8% accuracy or misalignment reduction. These are manufacturer claims, not independently established performance.
- Bluetooth is listed across several operating systems, but USB is specified only for Windows and macOS. Confirm the connection and app workflow for the device you plan to use.

## In the box

- 1× RW403B Label Printer (Included)
- User manual (Included)
- 1× Quick Start Guide (Included)
- Power adapter (Included)
- 1× Power Cord (Included)
- 1× USB-C to USB-A Adapter (Included)
- 1× USB Cable (Included)
- 30 Sheets of White Labels (Included)

## A good fit for

- Small businesses and home sellers printing 4 × 6-inch postage labels.
- Buyers who want a compact thermal printer with Bluetooth options for computers and mobile devices.
- Users who can work within the stated USB operating-system support when choosing a wired connection.

## Less suited to

- Buyers who need colour printing or a multifunction printer.
- Buyers who require a clearly specified print-speed unit before purchase.
- Anyone who needs confirmed USB support for ChromeOS, Android or iOS.

## Customer feedback

Customer feedback highlights quick postage-label printing, easy setup, compactness and Bluetooth connectivity. Those reports align with the printer's listed thermal label function and compact dimensions, while the feedback also describes mixed functionality, including reports that it would not print. Buyers relying on it for dispatch should account for that uncertainty and confirm that their setup works.
- Positive themes: Customers report quick printing and easy setup.
- Positive themes: Customers appreciate the compact design and Bluetooth connectivity.
- Positive themes: Customers describe it as useful for postage labels and good value.
- Mixed feedback: Functionality receives mixed feedback, with some customers saying it works well and others reporting that it will not print.

## Frequently asked questions

### What label size does the MUNBYN RW403B support?
The listing gives 4 x 6 inch as its maximum supported paper size.
### Which devices can connect to the RW403B?
Bluetooth is listed for Windows, macOS, ChromeOS, Android and iOS. USB is listed for Windows and macOS.
### Does this printer use ink?
The listing specifies thermal printing and No Ink.
### What is included in the listed package?
The manufacturer contents list names the printer, user manual, quick start guide, power adapter, power cord, USB-C to USB-A adapter, USB cable and 30 sheets of white labels.

## Alternative options

- [MUNBYN Shipping Label Printer Bluetooth, Postage Thermal Label Printer 4x6 for Business, Compatible with Etsy, Shopify, Royal Mail, DHL, DPD, Evri, with 25 Labels, 130B, Black](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [ETIKEZ Bluetooth 4x6 Thermal Shipping Label Printer for Parcels, Black \| Postage parcel label machine, supports iOS, Android, Windows Mac, works Amazon, Shopify, Etsy, Royal Mail, Evri, DPD, DHL](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [JADENS 4x6 Bluetooth Thermal Label Printer with Built-in Label Holder \| Inkless Printing, Wireless Printing, Cost-Effective Shipping Label Printer for Small Business, & Home Offices, Fast Setup](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [JADENS Bluetooth Thermal Label Printer, 4x6 Shipping Label Printer, 50 Labels Included, Compatible with Hermes, Royal Mail, DHL, DPD, Evri, Amazon, Shopify](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [Label Roll Holder Dispenser Stand for Thermal Label Printer with 250 4x6 Thermal Labels, Postage & Shipping Labels Use with Printer Accessory for Munbyn Jadens Rongta Svantto Knaon Tattmuse Printers](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [KNAON Shipping Label Printer Bluetooth, 4x6 Thermal Printer, Black \| Wireless Bluetooth, 4x6 thermal shipping labels, compatible with Etsy, Shopify, Amazon, fast printing for UK small businesses](https://bargainpostbox.co.uk/visit/knaon-y41bt-bluetooth-thermal-label-printer)
- [MUNBYN Shipping Label Printer Bluetooth, Postage Thermal Label Printer 4x6 for Business, Compatible with Etsy, Shopify, Royal Mail, DHL, DPD, Evri, with 25 Labels, 130B, White](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [MUNBYN 50x50mm Sea Salt Vanilla Macaron Color Circle Thermal Sticker Labels, Multi-Purpose Round Thermal Printer Labels for Canning, Personalised Wine Bottle \(150/Roll\)](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [vretti Thermal Shipping Label Printer 4x6,USB Only,No Bluetooth \| Postage Label Printer for Amazon, Royal Mail,Vinted，Compatibel with Windows, Mac OS and Linux, 99.99% Scan Success](https://bargainpostbox.co.uk/visit/vretti-db402-thermal-shipping-label-printer)
- [MUNBYN Wireless Thermal Printer, Wi-Fi Shipping Label Printer, Compatible with iPhone iPad Mac Android Windows Chromebook, for Etsy Shopify Royal Mail DHL DPD Evri, ITPP941 AirPrint](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [MUNBYN 50x50mm Thermal Labels Round for Candle, 150 Sheets/1 Roll \| 2 Inch Thermal Label Stickers, No BPA and BPS, Self-Adhesive, Print Clear and Sharp, Wide Compatibility](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)
- [MUNBYN 57mmx32mm Transparent Direct Thermal Labels, Self-Adhesive Address Shipping Thermal Stickers, BPA&BPS Free Transparent Square Stickers for Label Printer-1 Roll,500 Sheet](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)

## Add-ons

- [MUNBYN Bluetooth Shipping Label Printer, 4x6 Thermal Printer, 403B, White \| for Small Business, Compatible with iPhone, Andro](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-bluetooth-thermal-label-printer)

## Images

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 1](https://bargainpostbox.co.uk/i/_INSqNwkUkL30-XGhsfp_triVWI2Nwza5BFTqcr9VCwRzzPJW6Le_f4O0bM2POglYW4TGOpFwopYrYiKI-qIzdLtvDGUao2FOqmF8ccR4wr4yy7wSX1t6kHv.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 2](https://bargainpostbox.co.uk/i/kISvUKcsgwefoE0Kw2z3DH9zR1rcFBGc1zmqWyKiajFn2q-FnonlGpN0vMRlU1xBtfR9OrvhZJwxcaN4yMKRvcylL9MYIUsLvIUMdo7nliftO-CLB4-fjvgx.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 3](https://bargainpostbox.co.uk/i/K-FhJWhEhTvzInQQmfpJ4hji4N0vTdD6ZWEeLXd2KhnoSIXpz_7w96-iPdXt8txrwALEb7O8Hwm-p2byGJihSuPHWd1_u4ZRpNrLky36dBHQr2sxrxkzG3J9.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 4](https://bargainpostbox.co.uk/i/oHp1s3y0FXgLNzSghEDes598uL5XAyPkeIcH8yDHKqnn8y127GkW35_tCkv0-p06eb_o7gRButky-sc3ghUfzASsZKQRr6o_rdIT8371WtRwKSk3-_CSlK2f.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 5](https://bargainpostbox.co.uk/i/_tEaK1IZehP-YL0qdWf3XJLADs6IyLP1qLxsxPvG0AymS53IdIvgiD20Y0q3PrZ7TfdLyTb_i0EKzpt8KhLjYlcRNRjC7_1jvID0l_Y_Dj5nd_VonhQHIQhc.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 6](https://bargainpostbox.co.uk/i/3dD8_f9oJGBCp2U7Mrgdnh2A2ReQDslY-p0WhoDccZKuipJPm0hIHb8qeLGq4bEXGfCVdxQTLyi2I6OReg-yiUDEAFU0djbqtJVxwkb8QvUjNXvR6CcenBEi.jpg)

![MUNBYN RW403B 4×6 Bluetooth Thermal Label Printer — 7](https://bargainpostbox.co.uk/i/3iQAiCWDatHJyDTUIQrLDyE7LUNd8Kl4pwys-gmwjI0GOO78rJcMEiwjNKQvq8ad2k14l0BYGf8auiSwHEp9py_sJ52ri0WMl9IWe5Fx5vNSmc5jtwFvCG8i.jpg)