Advanced thermal printing technology, no ink cartridges, convenient and cost-effective. 200dpi high-resolution print head, clear output and stable performance. Supports a variety of functions, you can print photos, labels, messages, lists, web page prints, etc. Can be used to print the landscape you see, record sweet words, collect mistakes, interesting and practical exercises. Small size, easy to carry and store, convenient to use with good performance. Product Type: Mini Printer Model: C6 Material: ABS Connection: Wireless Bluetooth 4.1 Resolution: 200dpi Print Paper Width: Approx. 57mm / 2.2in Print Paper Diameter: Approx. 30mm / 1.2in Battery Type: Built-in 1000mah lithium battery How to Use: 1. Hold the power button for about 3 seconds to turn on/off; 2. Double-click the power button to automatically print QR code after startup, scan QR code to download and install the app, register and log in to the account; 3. Turn on Bluetooth on your mobile phone, enter the app, connect to the printer in "My Device" and then print the paper strip after success. Package includes: 1 x Printer 1 x Print Paper 1 x Data Cable 1 x User Manual Customers are our top priority. If you discover any product issues after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best post-sale service.