The Yellow Square is a blue portable mini printer that prints on thermal paper with no ink. It pairs with a smartphone over Bluetooth 4.0 and turns out notes, lists, reminders, stickers and black-and-white images at 203 dpi. The 113×80×38 mm body and 1000-mAh battery make it easy to carry around.
Specifications
| Parameter | Value |
|---|---|
| Device type | pocket printer |
| Printer type | thermal printer |
| Print method | thermal, no ink |
| Print colour | black and white |
| Resolution | 203 dpi |
| Connectivity | Bluetooth 4.0 |
| Battery, mAh | 1000 |
| Dimensions | 113×80×38 mm |
| Weight | 0.15 kg |
| Housing colour | blue |
| Consumable | thermal paper |
| Device class | personal |
| Country of origin | China |
What you get
- Printing in a pocket format — a 113×80×38 mm body weighing 0.15 kg takes up about as much room as a wallet.
- No ink at all — thermal printing develops the image on thermal paper, so paper is the only thing you ever buy.
- Clear text — 203 dpi is enough for lists, timetables, formulas and short notes.
- Wireless connection — Bluetooth 4.0 lets you print from your phone without cables.
- Freedom from sockets — the 1000-mAh battery lets you print wherever you are.
- A check before printing — the app previews the image and keeps a history of prints.
Who it is for
School and university students printing short notes, formulas or timetables. People who keep to-do lists and reminders on paper. Anyone who works with small stickers and labels. A gift for a child or an adult who likes planning and decorating their notes.
Who should skip it
If you need colour output, this printer only prints in black and white. It is not meant for full-size documents, as it is a pocket device. It prints only on thermal paper; regular office paper will not work.
Uses and compatibility
The printer works with Android and iOS smartphones over Bluetooth 4.0. Typical uses: printing notes, lists, reminders, photos and images from a phone, printing stickers, study and work, and gifting to children and adults.
What is in the box
- Mini printer
- Thermal paper roll
- USB cable
- User manual
Questions and answers
Does it need cartridges or ink?
No. It is a thermal printer: the image forms on thermal paper, so paper is the only thing you need to buy.
Which phones does it work with?
Android and iOS smartphones, connected over Bluetooth 4.0.
Can it print photos?
Yes, in black and white at 203 dpi. High-contrast shots with clear outlines come out best.
What can the app do?
Print directly from your phone, preview the image before printing and keep a history of your prints.











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