About this item 【High Compatibility】vretti A4 thermal printer not only connect with IOS and Android smartphones via Bluetooth via "Xlife Pro" app. It can also be connected via Windows, Mac OS and USB (PC only supports USB connection). Inkless Printer: This portable printer uses thermal printing technology, which eliminates the need for ink, toner or ribbons, and there are no clogging or cleaning problems related to ink. It should be noted that this thermal printer supports only thermal paper, and not ordinary paper, and it supports the use of thermal rolls and continuous folding paper. A Professional After-Sales Service Team: We are committed to providing excellent after-sales service with lifetime technical service by email, phone and remote control, whether you have any questions before or after using the thermal printer, our professional team will help you quickly and efficiently. › See more product details