Description/Features: 1. Easy to operate and print directly on your phone 2. Ink free printing, clean and environmentally friendly, not dirty hands 3. Photo level high-definition printing for more comfortable reading 4. Sorting out incorrect notes and bidding farewell to messy knowledge points 5. What can be packed into a backpack is the ultimate learning tool that can be carried with you : Interface: USB Printing : direct heat transfer printing Printing resolution: 200DPi Printing speed: 10MM/S Connection : mobile Bluetooth, USB APP software: iprint Type: Lithium battery 7.4V Capacity (mAh): 1000mAh Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Material: abs colour: White Package Contents: 1 x label maker machine 1 x Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.