INK-FREE PRINTING: This portable printer supports thermal ink-free printing without the need for cartridges, ribbons, or ink, making it convenient and practical. A4 PAPER SIZE: This wireless remote printer supports A4 paper printing and can print small paper strips and long banners, meeting diverse printing needs. GREAT COMPATIBILITY: Supports OS X and Windows laptops, iOS and Android phones (via WIFI). Download the Tiny Print app to print anytime, anywhere. LONG ENDURANCE: Built-in 2500mAh lithium battery, fully charged in about 4 hours, can continuously print 400 A4 papers. Features automatic shutdown after 30 minutes of inactivity and up to 60 days of standby time. PORTABLE SIZE: The WiFi thermal printer boasts a compact size that easily fits into a backpack or briefcase, making it suitable for home, school, and office use. Item Type: WiFi Thermal Printer APP: For Tiny Print Connection Method: WiFi Connection Resolution: 200dpi Charging Interface: Type C Printing Method: Thermal Ink-free Printing Image Processing Method: Black and White Printing Paper Specification: A4 Battery Capacity: 1 x 2500mAh Rechargeable Lithium Battery (Built-in) Size: Approx. 291 x 100 x 62 mm / 11.5 x 3.9 x 2.4 inches Includes: 1 x Host, 1 x USB Cable, 1 x User Manual, 1 Roll of Printer Paper (pre-installed).