Features: Brand new and high quality Save time copying notes by hand, helps with learning, improves learning efficiency, and prints quickly. Supports multiple functions, collect the exercises you got wrong, fun and practical. 200DPI resolution, clear print quality. Built-in 1000mAh rechargeable battery, works with low noise, the thermal printer needs no ink cartridge when using. Mini cute design and lightweight body can be put in a pocket or bag for easy carrying. Can be used for work plans, memo lists, daily calendars, meeting notes, studies, office, home and travel. etc. Specifications: Specification: Color: Blue, Pink (Optional) Battery: 1000mah Lithium Battery 7.4V Operating Current: DC5V, 1A Paper Type: Thermal Paper Connection: BT Connection Interface: Micro-USB Print Resolution: 200DPI Paper Size: 57X30mm/2.24X1.18in Printer Size: 80X80X35mm/3.1X3.1X1.4in Package Weight: 250g/0.55lb Note: How to get the app: Download \"IPrint\" from the APP store. Please download the app before use and connect the device via the app. Quickly press the printer button twice, and it will automatically print the paper with a QR code. Scan it and quickly connect the device via BT. Then start printing! If the printing goes wrong, please check the installation of the paper roll or contact us. Thank you! Due to problems with lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement. Package includes: 1 x Thermal Printer 1 x Thermal Paper 1 x USB Cable 1 x User Manual