Description: Bluetooth Printer: Support Wireless Bluetooth BLE4.0 connected with smartphone. Portable Design: Small and lightweight, can be put in your pocket or bag. You to take this printer and printing paper anywhere and use it anytime. Thermal Printer: Printer with 200dpi high resolution printing head, can print 57mm(width)x30mm(roll diameter) thermal paper.The color thermal printing paper need to be pasted by the solid glue. Time Saver: Can be used to print to do list, hand‑written notes, journal etc. Saving your time and improving learning efficiency. Cute appearance and excellent printing performance, perfect gift for students, office workers and your friends. Specification: Connectivity: Bluetooth BLE4.0 Media：Thermal Paper Roll Print Method : Thermal/Inkless Print Speed: 10MM/s Printing Paper: 57x30mm/2.24x1.18inch Power supply: Built-in 1000mAh Lithium Battery Charging Interface: 5V-MicroUSB Resolution: 200dpi Size Chart: Printer Size: approx. 11x8x3.5cm/4.33x3.14x1.37 inch Printing Paper Size: approx. 57x30mm / 2.44x1.18 inch Package Includes: 1 Piece Mini Thermal Printer 1 Piece Charging Cable 1 Roll Thermal Paper 1 Piece User Manual 5 Pieces Yellow Thermal Paper Rolls Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!