1、INKLESS PRINTING: This portable Bluetooth printer supports inkless thermal printing without the need for any carbon, ribbon, or ink, ensuring clean and tidy printing effect. 2、APPLICABLE PAPER: This portable thermal printer is suitable for A4 paper printing, suitable for 210mm‑218mm wide thermal paper (not included), and has a wide range of applications. 3、APP CONNECTION: This inkless thermal printer supports small paper strips and long banner printing. Simply load the thermal paper and connect to the APP to operate it. 4、GOOD COMPATIBILITY: This portable A4 printer is suitable for iOS and for Android phones (with Bluetooth connection), and supports continuous printing of 90 sheets A4 thermal paper. 5、BATTERY POWERED: Built in 1000mAh rechargeable lithium battery, fully charged in about 1.5 hours, automatic shutdown after 30 minutes of no operation, standby time up to 30 days. Item Type: Inkless Thermal Printer Connection: Bluetooth 4.0 or above Support App System: For iOS, for Android Printing Resolution: 200dpi Battery Capacity: 1 x 1000mAh Rechargeable Lithium Battery (built in) Auto Power Off: 30 Minutes Charging Time: About 1.5H Continuous Printing: About 90 Sheets A4 Thermal Paper Printing Speed: 10mm/s Applicable Paper Width: 210mm-218mm Thermal Paper (not included) Charging Interface: Type C Size: Approx. 265 x 58 x 30mm / 10.4 x 2.3 x 1.2in 1 x Thermal Printer 1 x USB Cable 1 x User Manual