✔ All in One Printer: Support multiple functions, it can print photos, labels, messages, lists, records, files and so on. The APP offers a variety of fonts and themes to make your photos stylish. ✔ Mini & Cute Appearance: Small and lightweight body, can be put in your pocket or bag, easy to take it anywhere. 203DPI resolution, great clear printing quality. Suitable for study, office, home and travel. The best gift for students, office workers, lovers, friends, family. ✔ 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. ✔ Connection Method: Support Wireless BT 4.0 connected with smartphone. Please follow the user guide to download the relative APP (Walkprint) through the APP Store (IOS System) or Google Play (Android System).  ✔ Thermal Paper Specs: Comes with 5 rolls of adhesive thermal paper and 6 rolls of white thermal paper and 3 rolls of colorful thermal paper, you can print as soon as you receive the package. Specification: Model: A31 Resolution: 203dpi Size: 90 x 45 x 82mm Weight: 165g Color: Blue, Pink (Optional) Printing Method: Thermal Printing Paper Roll Size: 57x25mm Adhesive Thermal Paper Roll Length: About 300cm Non-Adhesion Thermal Paper Roll Length: About 4.5m Battery: 1000mAh 7.4V Connection: BT 4.0 and above Charging Interface: Micro-USB Packing List:  1 x Thermal Printer 1 x USB Cable 1 x User Manual 5 x Adhesive Thermal Paper Roll 6 x Non-Adhesion Thermal Paper Roll 3 x Colorful Non-Adhesion Thermal Paper Roll