Multifunction: Support Wireless BT 4.0 connected with smartphone. Support multiple functions, it can print photos, labels, messages, lists, records, wrong question, web printing and so on. Save time in hand‑written notes, help learning, improve learning efficiency, print at a speed of 10mm/s, wrong questions are no longer cluttered, great for student. Mini Portable: Small and lightweight body, can be put in your pocket or bag, easy to take it anywhere.