mini portable thermal printer

This type of printer is a compact, inkless device that connects to a smartphone or other device via Bluetooth to print photos, labels, notes, and more. It uses heat-sensitive paper instead of ink cartridges to produce prints. 

Key features of this type of printer include:

Portability: The small and lightweight design makes it easy to carry in a pocket or bag.

Ink-Free Printing: It uses thermal technology, eliminating the need for ink or toner, which makes it low-maintenance and eco-friendly.

Wireless Connectivity: It typically connects to mobile devices like smartphones via Bluetooth.

Versatility: It can be used for various purposes, including printing memos, to-do lists, labels, and photo 

the size of a mini portable printer like the one shown is typically around 110 x 80 x 30 mm (or 4.3 x 3.1 x 1.4 inches). 

These dimensions make the printer compact and lightweight, often weighing about 160g, which allows it to be easily carried in a pocket or bag.