Feature: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 210mm218mm 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.Specification:Item Type: Inkless Thermal PrinterConnection: Bluetooth 4.0 or aboveSupport App System: For iOS, for AndroidPrinting Resolution: 200dpiBattery Capacity: 1 x 1000mAh Rechargeable Lithium Battery (built in)Auto Power Off: 30 MinutesCharging Time: About 1.5HContinuous Printing: About 90 Sheets A4 Thermal PaperPrinting Speed: 10mm/sApplicable Paper Width: 210mm-218mm Thermal Paper (not included)Charging Interface: Type CSize: Approx. 265 x 58 x 30mm / 10.4 x 2.3 x 1.2in.Package List:1 x Thermal Printer1 x USB Cable1 x User ManualNote:If the device Bluetooth is not found, you can perform the following operations to search again:1. Restart the printer and ensure that the printer is not connected to any other device.2. Ensure that the Bluetooth of the mobile phone is enabled.3. Please enable GPS (location information) in the phone Settings, and find the APP in the application, Permission management to enable location permission. Please enter my device list in the APP and click on the device to connect.The printer is only suitable for thermal paper and cannot be used for ordinary paper printing.