Feature: 1. Inkless Printing: This thermal printer uses inkless printing, without cartridges, toner or ink, which is clean and environment friendly. 2. Portable And Efficient: This thermal printer is compact and very easy to carry around on the go, so you can print anywhere and anytime. 3. Wide Application: This thermal printing application is very wide, and is suitable for business trips, schools, cars and other mobile scenarios, printing anytime and anywhere. 4. Built In Block: This thermal printing built in block, which can adjust the paper slot width, and can be flexibly switched between 216mm, 210mm, 176mm, 148mm, 107mm, 77mm, 57mm (US letter A4, 4inch, 3inch, 2inch). 5. Good Compatibility: This thermal printer has good compatibility, and supports Bluetooth connection for IOS and for Android phones, and USB connection for Windows 7 to 11. Specification: Item Type: A4 Thermal Printer Material: ABS Connection: Bluetooth 4.0 or Above Compatibility: for Android and for iOS Cell Phones and Laptops Printing Specification: 203dpi Battery Capacity: 2600mAh Rechargeable Lithium Ion Battery x 1 ( Shipped With Built In Battery ) Auto Shutdown: 30min Charging Time: Approx. 1.5H Continuous Printing Endurance: 120 Sheets of A4 Thermal Paper Print Speed: 10mm/s Charging Interface: Type C. Package List: 1 x Thermal Printer1 x USB Cable1 x Manual1 x Paper Roll