Feature: 1. Advanced thermal printing technology, without ink cartridges, convenient and economical. 2. High resolution 200 dpi print head, with clear printing and stable performance. 3. Supports a variety of functions, you can print photos, labels, messages, lists, web page printing, etc. 4. It can be used to print the scenery you see, record your sweet words, collect mistakes, interesting and practical exercises. 5. Small size, easy to carry and store, convenient to use and good performance. Specification: Item Type: Mini Printer Model: C6 Material: ABS Connection: Wireless Bluetooth 4.1 Resolution: 200 dpi Printing paper Width: Approx. 57mm / 2.2in Printing Paper Diameter: Approx. 30mm / 1.2 inch Battery type: Built-in 1000mah lithium battery How to use: 1. Press and hold the power button for about 3 seconds to turn on / off; 2. Double click the power button to automatically print the QR code after boot, scan the QR code to download and install the APP, register and log into the account; 3. Turn on the mobile phone Bluetooth, enter the APP, connect to the printer in "My device", and then print the paper strip after success. Package list: 1 x printer 1 x Printing paper 1 x Data line 1 x User Manual