Feature: 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 childrens 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. Specification: Item Type: Mini Memo PrinterMaterial: ABS Size: Approx. 11 x 9 x 3.5cm / 4.3 x 3.5 x 1.4in (manual measurement, for reference) Printing Parameters: 200DPI Printing Method: Thermal inkless black and white printing Battery Type: Lithium battery Battery Model: 523450 Battery Capacity: 1000mAh Printing Paper: Approx. 55 x 30mm / 2.2 x 1.2in Instructions: 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 device Power Indicator Status: Green Light is Always On/Green Light Flashes Quickly: Standby/printing Red Light Always On/Red Light Off: Charging/charging completed Flashing Green: The print head is overheated/out of paper. Package List: 1 x Wrong Question Printer1 x USB Cable1 x User Manual1 x Printer Paper Note: The new thermal paper needs to be exposed to the paper bin with a length of 2cm, so that the machine can automatically suck paper when the paper bin is shaped.