Features: ✔ Mini & Cute Appearance: Small and lightweight body, can be put in your pocket or bag, easy to take it anywhere. Clear 203DPI resolution, great clear printing quality. Suitable for study, office, home and travel. The best gift for students, office workers, lovers, friends, family. ✔ Connection Method: Support Wireless BT 4.0 connected with smartphone. Please follow the user guide to download the relative APP (luck jingle) through the APP Store (IOS System) or Google Play (Android System). ✔ Convenient for Your life: Can record the scenery you see, record his or her sweet words, collect the exercises you have done wrong, fun and practical. Built-in 1000mAh rechargeable battery, working in low noise, the thermal printer does not need ink cartridge when using, low operation cost. ✔ How to Use: Download the APP (luck jingle) first, turn on the bt function in your mobile device, then enter and click in APP by clicking “unconnected” in the right up corner of the APP page, selecting P7 model and connect. Now free to choose any functions to start your print. ✔ Thermal Paper Specs: Comes with 1 roll of thermal paper 57x25mm, you can print as soon as you receive the package. Specification: Model: P7 Color: White, Pink, Blue, Yellow (Optional) Size: 82x82x40mm Printing speed: 80-110mm/s Resolution: 203DPI (8 dots/mm) Points per line: 384 points per line Paper thickness: 0.05 - 0.10mm Paper Width: 57 +/- 0.5mm Print Width: 48 +/- 0.5mm Roll paper diameter: 30mm (maximum) Battery: 1000mAh rechargeable battery Package Size: 103x84x44mm/4x3.3x1.7in Package Weight: 210g/7.4oz Packing List: 1 x Pocket Printer 1 x Thermal Paper 1 x Charge Cable