1. Mini thermal printer: This kind of printer usually adopts a small and lightweight design, which is easy to carry and use. It uses thermal printing technology, which can print images or text directly on thermal paper without using ink or ribbon. It is suitable for printing small photos, labels, tickets, etc. 2. Bluetooth printer: This kind of printer connects to the device through Bluetooth technology and is compatible with a variety of devices such as Android and iOS mobile phones. Bluetooth printers usually have a portable design, making them easy to use in mobile environments. 3. Image, photo and label printing: Both mini thermal printers and Bluetooth printers can be used to print images, photos, labels and other content. You can use them to print travel photos when traveling, or you can use them to print file labels, item labels, tickets, and more.