

Thermal label printer, 203 dpi, Bluetooth, battery included
Print clear labels from your phone, so everyone at home can read what things are and where they belong.
4.9 from 200 buyer ratingsWhat it does
This thermal label printer puts a clear printed label on the bin, bottle or cable in your hand, wherever you are standing. It replaces the dried-out marker and the guesswork about which box holds the spare charger. You type the text in the app, send it over Bluetooth, and it prints at up to 50 mm/s at 203 dpi. At 130 × 94 × 61 mm with a battery included, it goes to the garage with you.
This thermal label printer turns text you type on your phone into a printed adhesive label from a roll. The 203 dpi print head and the roll feed handle the labeling jobs that keep a home or a workplace straight: bins, cables, shelves, cleaning bottles, equipment and stock. As a portable label printer it is listed for commercial use, and it is just as useful in a house with a lot of stuff to keep track of.
Setup is done on your phone. Turn the printer on, pair it over Bluetooth and control printing from the app. The battery is included, the plug type is USB Type-C and the rated voltage is 100-240 V, so you can carry it around while you work and charge it afterwards. The B21 comes in red, green, black and white.
This printer makes one-sided black labels on roll-fed stock. It does not print in color, it does not print on both sides, and it does not print over a network, so your phone has to stay within Bluetooth range while you print. It does not print documents or photos. If you need color labels, two-sided labels or printing from a computer across a network, this is not the printer for you.
Ships from China with tracking. The estimated arrival range for your country is shown next to the price.
- Labels that read clearly up closeA 203 dpi print head puts sharp text on each label, so names, warnings and dates stay legible at arm's length. Black print runs at up to 50 mm/s, and the label is in your hand as soon as it is done.
- Print wherever the labels are neededThe printer measures 130 × 94 × 61 mm and the battery is included. As a portable thermal printer it moves from the desk to the closet to the garage and prints there over Bluetooth, with no cable running to your phone.
- Build each label on your phoneYou type the text in the app and send it to the printer over Bluetooth. Nothing is stored on the printer itself, since it has no internal memory, so you edit and reprint from your phone whenever a label needs changing.
- Finish a whole run in one sittingA roll feed keeps labels moving and the print speed is 40 ppm. Marking every cord behind the desk or every bin in the garage takes one sitting instead of a week of spare moments.
- Clear labels for shared equipmentThe printer carries CE, FCC, ROHS, KC and WEEE marks. When you label shared equipment or stock that other people handle, clear printed labels help everyone read what each item is and where it goes.
What buyers say
From people who bought this exact product. Every rating counts in the score, the low ones too.
Buyer reviews of this same product, published on other sites. We check the item matches, not each purchase.
64 ratings have no written review, only talk about delivery or were filtered as spam, so they aren't listed. They still count in the score.
I loved it ✨ it works really well and is very nice, super good because of the price ✨ just as a detail, if your cell phone or tablet is very old, the app doesn't work, but on my phone it does because it's newer 🙌🏻 just in case that observation is useful to you ☺️
It was really great, I want to use it a lot!
I really liked it, delivery took 9 days, everything is great. The box was completely intact. Very cute, pleasant color. I tried printing. Everything is great. The set includes 1 roll of stickers. I did not communicate with the seller.
The thermal printer arrived very quickly, approximately in two weeks, well packaged and works very well.
I really liked the gadget; the quality of the materials is excellent for a product from China. The printing is clear and fast.
Very cool! It was packed perfectly, high quality, easy to use with the app.
Specs
| Model | B21 |
|---|---|
| Type | Thermal printer |
| Paper feed | Roll feed |
| Max resolution | 203 dpi |
| Print speed | 40 ppm |
| Max black print speed | 50 mm/s |
| Connection | Bluetooth |
| Control method | App |
| Battery | Included |
| Plug type | USB Type-C |
| Rated voltage | 100-240 V |
| Size | 130 × 94 × 61 mm |
| Double-sided printing | No |
| Network printing | No |
| Color printing | No |
| Internal memory | None |
| Application | Commercial use |
| Certifications | CE, FCC, ROHS, KC, WEEE |
- CE
- FCC
- ROHS
- KC
- WEEE
Delivery to Columbus
Every step is tracked. The tracking link comes by email, in your language.
- Order placedYou get a confirmation straight away.
- Packed and handed to the courierTracking number sent to you.
- Flies to United StatesThe courier may collect import duties or taxes on delivery.
- At your doorEstimated from recent deliveries to your country.
Returns
The short version. The returns page has the full rules.
Questions
Does it work without a computer?
Yes. It connects to your phone over Bluetooth and you control printing from the app. Network printing is not supported, so a computer is not part of the setup at all.
Do I need a hub or a Wi-Fi connection?
No. As a Bluetooth label printer it pairs directly with your phone. The signal connection type is Bluetooth and nothing else has to sit between the two devices.
What does it need to run?
A charged battery and a roll of labels. The battery is included, the plug type is USB Type-C and the rated voltage is 100-240 V. Load a roll into the roll feed, pair over Bluetooth and print from the app.
Is this a mini thermal printer that fits on a crowded desk?
Yes. It measures 130 × 94 × 61 mm, so it sits on a shelf or in a drawer. The battery is included, so you can also carry it to the item you are labeling instead of bringing the item to the desk.
Can it print in color or on both sides?
No. It prints black on one side of the label stock. There is no color print speed and double-sided printing is not supported, so it will not make color or two-sided labels.
Why does it ship from China?
We buy from established suppliers in China, and they ship your order straight to you. The trade-off is time, so you see the estimated arrival before you pay.
Will I pay anything when it arrives?
Possibly. Import duties and taxes for United States aren't prepaid yet, so the courier may collect them on delivery. Nothing is added to our price at checkout.
Who is Viversio?
Viversio is a brand of Ravinaro LLC, a company registered in the United States. We choose devices from factories with strong track records, and a real person answers every email.


