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NEW IN SEALED BOX · THERMAL LABEL PRINTER

NIIMBOT B21S Series Smart Label Printer RED New Sealed Box

Model B21S | MPN B21S | 1 in stock

Brand new, factory-sealed NIIMBOT B21S wireless smart label printer in retro red featuring inkless direct thermal printing, automatic label alignment, and Bluetooth mobile app connectivity.

Direct Thermal

Print technology

20–50 mm

Label width

Bluetooth / USB

Connectivity

1200 mAh

Rechargeable battery

Check this works with your setup

Requires the free NIIMBOT App for iOS and Android via Bluetooth, or the official NIIMBOT PC driver via USB cable. Confirm your labels use NIIMBOT B21/B21S-compatible direct thermal rolls (supported width: 20 mm to 50 mm / 0.8" to 2").

This is direct thermal printing; it requires no ink, ribbon, or toner. Standard 5V USB charging block/port required for recharging (USB-C cable included; wall charger not included).

Product overview

The NIIMBOT B21S is a vintage-inspired, ultra-portable direct thermal label printer ideal for small business inventory, barcoding, price tags, kitchen organization, and office filing. Pairing quickly via Bluetooth to your smartphone or tablet, the NIIMBOT app provides hundreds of pre-designed templates, fonts, borders, and barcode/QR code generation tools. Because it utilizes direct thermal tech, there are no messy ink cartridges, toners, or ribbons to replace.

Key features

Zero Ink Required — direct thermal printing eliminates expensive ink and toner cartridges entirely.
Smart RFID Recognition — automatically identifies installed NIIMBOT label rolls and templates.
Versatile Width Handling — accommodates label widths from 20mm up to 50mm (0.8" to 2").

Wireless Bluetooth Pairing — instant connection to iOS and Android smartphones and tablets.
Long-Lasting Battery — built-in 1200mAh battery provides hours of continuous printing on a single charge.
Retro Aesthetic Housing — stylish piano-gloss finish with metallic accents in vintage red.

Technical specifications

Brand

NIIMBOT

Model / MPN

B21S (B21 Series)

Color

Retro Red

Print Technology

Direct Thermal (Black & White)

Resolution

203 DPI

Print Width Range

20 mm – 50 mm (0.8" – 2.0")

Connectivity

Bluetooth 4.0 / Type-C USB

Power input

5V Type-C USB (Internal 1200mAh Li-ion battery)

Dimensions

Approx. 5.1" x 3.7" x 2.4"

Weight

Approx. 0.66 lbs (300 g)

Condition: Brand New (Factory Sealed)

Assessed on four axes before listing.

Functional

Brand New · Unused

Factory original unit, brand new and never operated or removed from packaging.

Cosmetic

Factory Sealed

Original retail box with factory seals intact. Outer box shows crisp edges with no significant shelf wear.

Data and configuration

Factory Pristine

Virgin factory firmware state. Never paired with any user account, smartphone, or cloud profile.

Licensing and accounts

Free Companion App

Standard NIIMBOT mobile app download is free on Google Play and Apple App Store. No subscription required for basic label creation.

What's included

1 x NIIMBOT B21S Smart Label Printer (Red) in sealed box
1 x Starter Thermal Label Roll (inside factory packaging)
1 x USB Type-C charging cable
1 x User Quick Start Guide & manual

Not included

USB AC wall power adapter (plugs into any standard 5V phone charger or USB port)
Additional or continuous aftermarket label rolls beyond the starter roll
Optional VIP app template subscriptions

Photos show the exact sealed unit you'll receive. If something you need isn't listed on the left, assume it isn't in the box and ask before buying.

Before you put it into service

Fully charge the device via the included USB-C cable prior to initial pairing.
Download the official NIIMBOT app from the iOS App Store or Google Play Store.
Always pair the Bluetooth connection inside the NIIMBOT app itself, rather than through your phone's native Bluetooth settings menu.
Ensure the thermal label paper is inserted with the printable side facing downward toward the thermal print head.

Shipping

Same-day dispatch. Orders paid before 2:00 PM MST on business days ship the same day; everything else goes out the next business day.

Carriers. USPS Ground Advantage or Priority Mail, chosen by size and destination. Ships from Phoenix, AZ.

Tracking. Uploaded to eBay as soon as the label scans.

Returns and payment

No returns accepted. Covered under listing terms and eBay's Money Back Guarantee.

How to start one. Open a return through eBay. We respond the same business day. Items come back as sent, with all included accessories.

Payment. Every method eBay accepts at checkout. Due at purchase. Combined shipping applies automatically on multi-item orders.

Why buy from IT Warehouse

Inspected in hand

Factory seals and packaging checked for integrity before listing.

Photos of the real item

Photos show the actual sealed box in inventory, not generic stock photography.

Answers same business day

Messages usually answered within a few hours, by someone who handled the item.

Packed to survive transit

Rigid outer packaging ensures the retail box arrives crisp and collector-grade.

About IT Warehouse

We're a small Arizona operation sourcing surplus and end-of-line stock: computer hardware, lab and test equipment, electronic components, power supplies, batteries, and books. Everything is inspected and photographed before it's listed.

Questions before or after your purchase? Use the "Contact seller" link on this listing. We answer every business day, usually within a few hours.

See everything currently in stock

Terms

Payment is due at purchase, through eBay's checkout.
Orders are processed Monday through Friday, excluding public holidays.
This listing covers only the item described above. Message us before buying if anything is unclear.
Returns are handled under the policy stated above and eBay's Money Back Guarantee.

Sold as genuine manufacturer surplus in the condition described above. Manufacturer names and model numbers are used for identification only and do not imply affiliation, endorsement, or authorized-reseller status. This item carries no manufacturer warranty unless stated, and no optional premium application subscriptions are transferred with it unless explicitly listed. Operate strictly within specified electrical parameters.

IT Warehouse LLC
Phoenix, Arizona · Inspected in hand · Same-day dispatch · Answers same business day
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