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M421 thermal printer is AIMO 2025 new design and upgrade label printer, is a compact, portable, wireless thermal label printer for small businesses, home use, or warehouses, printing ink-free on various thermal labels (40-106mm) via Bluetooth or USB for shipping, barcodes, and organization. Key features include a built-in battery.
Product Features:
Red and black label printing.
Wide Label Support: Prints various thermal labels (folded or roll) from 1.57″ to 4″ (40-106mm) wide, ideal for 4×6 shipping labels.
Portable 4×6 Thermal Paper Compatibility: Designed for portability, the M421 seamlessly prints on 4×6 thermal paper, ideal for on-the-go labeling.
Shaftless paper tray design: Easier paper loading.
Certification: FCC、CCC、 CE、Rohs、IC
| Product Name | AIMO M421 Shipping Label Maker |
| Print Method | Thermal Printing |
| Printing Resolution | 203 DPI |
| Print Speed | 22 mm/s |
| Label Width | 40-106mm |
Maximum Printing Width | 106 mm |
| Interface | Bluetooth / Type-C |
| Product Size | 154x105x62 mm |
| N.W | 527 g |
| Battery Capacity | 2200 mAh |
| Power Input | 5V=2A |
| Power Supply | Type-C / Lithium battery |
| Barcode | Support one-dimensional code/QR code |
| Instruction Set | ESC / POS |
| Material | ABS + Metal |
Consumables | Gap paper/Black label paper/Continuous paper/Folded paper |
Application | Logistics: Shipping Label, Address Tags Supermarkets: Price tags, discount tags, product information tags |

—Versatile Label Maker & Shipping Printer—
Dual-purpose as a label maker and shipping printer, the M421 handles labels from 1.57″ to 4.1″ (40-106mm) with ease.
Guide Lock Paper Design, Precision rails keep your labels perfectly aligned. No more wonky prints!

— Red & Black Printing —
Only with genuine AIMO RB paper for vivid alerts & crisp text. RED = Notice Me!

—Smart APP—
200+ templates • 110 fonts • 1,500+ icons.20-language support + lifetime technical support.

| Product Name | AIMO M421 Shipping Label Maker |
| Print Method | Thermal Printing |
| Printing Resolution | 203 DPI |
| Print Speed | 22 mm/s |
| Label Width | 40-106mm |
Maximum Printing Width | 106 mm |
| Interface | Bluetooth / Type-C |
| Product Size | 154x105x62 mm |
| N.W | 527 g |
| Battery Capacity | 2200 mAh |
| Power Input | 5V=2A |
| Power Supply | Type-C / Lithium battery |
| Barcode | Support one-dimensional code/QR code |
| Instruction Set | ESC / POS |
| Material | ABS + Metal |
Consumables | Gap paper/Black label paper/Continuous paper/Folded paper |
Application | Logistics: Shipping Label, Address Tags Supermarkets: Price tags, discount tags, product information tags |


AIMO Self-Adhesive Circle Labels, Xmas Gifts Decorations Round Sticker for M110/M108/M122/M120/M220/M200/M150/M421 Label Printer, Holiday Labels for DIY, Greeting Card. These thermal labels let you skip the hassle of handwritten tags—simply print batches of labels easily from your phone. They take the stress out of holiday prep, so you can focus on spreading joy and cheer all season long.
Product Features:
Certification: FCC、 CE、Rohs、IC

The ultra-compact thermal label printer that fits in one hand. Weighing less than 1 lb, it offers true wireless Bluetooth printing for all your devices. Perfectly compatible with platforms like Amazon & Shopify, it prints sharp 1-4.6" labels instantly, with no ink or toner required—just plug-and-play efficiency for your business.
Product Features:
Ultra-Compact & Lightweight
Universal Bluetooth & USB
Wide 1-4.6" Compatibility
Ink-Free, Fast 208mm/s Printing
Major Platform Support
Certification: FC、CCC、 CE、Rohs、ICC

M120 label maker is a portable Bluetooth thermal printer that can print black and white labels at a speed of 50-70 mm/s. It supports paper sizes of 20-60 mm and has a maximum resolution of 203 x 203 DPI. The label maker is inkless and comes with a lithium battery of 1200 mAh, making it convenient to use on-the-go.The device is compatible with Android and iOS support systems and has features such as pocket printing, portability, and a compact design. It also comes with a 1-year manufacturer warranty. This label maker is perfect for those who need to print labels for their business or personal projects.
Product Features:
Connect with smartphone, support iOS, Android
Super endurance, continuous printing: 3-4h
Consumable paper width: 20-50mm
Portable lithium rechargeable battery
Various label templates
Support multiple languages
Certification: FCC、CCC、 CE、Rohs、IC

M220 label printer equipped with a high-tech thermal print head and never needs ink or toner.
The label makers support print 0.78-3.14 inch width thermal labels, including pre-cut labels, non-precut labels, and transparent labels. For home, office, inventory, store, running a small business, 1D code, QR code, address, mailing, clothing tag, jars, and more labeling, one M220 label maker sticker machine met all needs.
Product Features:
Easy printing with smartphone/tablet.
Fast charging, Super endurance.
Customize labels and stickers.
Massive templates and materials.
Access a variety fonts, icons.
Certification: FCC、CCC、 CE、Rohs、IC
Feel free to contact us if you have any questions. We will get back to you as soon as possible.