1、This pocket printer can save time for copying notes by hand, help learning, improve learning efficiency, and make mistakes no longer messy. 2、The mini printer can not only be used to print learning materials for wrong questions, but also record children's growth, feelings on the journey, and express emotions to others. 3、Support of shooting question search, text recognition, and retrieval technology helps children who take photos and upload questions to solve detailed questions and answer questions. 4、This printer can print office notes, is compatible with Word documents, and can easily handle work plans, memo lists, and meeting notes. 5、The thermal printer is mini, easy to carry, with a compact design, which is popular among children. 1 x Wrong Question Printer1 x USB Cable1 x User Manual1 x Printer Paper Item Type: Mini Memo PrinterMaterial: ABSSize: Approx. 11 x 9 x 3.5cm / 4.3 x 3.5 x 1.4in (manual measurement, for reference)Printing Parameters: 200DPIPrinting Method: Thermal inkless black and white printingBattery Type: Lithium batteryBattery Model: 523450Battery Capacity: 1000mAhPrinting Paper: Approx. 55 x 30mm / 2.2 x 1.2inInstructions: 1. Please charge it for the first time, press and hold the power button for 3 seconds to turn on 2. Download the portable app 3. Turn on the mobile phone Bluetooth, search for the device in the APP and connect it 4. Or double-click the printer power button, APP scans the QR code on the paper to connect to the devicePower Indicator Status: Green Light is Always On/Green Light Flashes Quickly: Standby/printingRed Light Always On/Red Light Off: Charging/charging completedFlashing Green: The print head is overheated/out of paper