1000 mAh rechargeable built-in, can be for about 2 weeks when fully . Mini printer with lithium-ion battery can print photos anytime and anywhere. Due to the heating technology, no ink is used, no unnecessary cost and can print photos, labels, messages, lists, logs, web pages, QR codes, etc. This portable printer is easy to use, it is compatible with most iOS and Android devices. Our sticker printer is easy to operate. First, Please to search "Walkprint" on the or on Google,then long press the printer switch and the green light flashes, turn on the blue-tooth device of our mobile phone, open the "Walkprint" app and click "connect", refresh and click "YHK-9414" and connect and print all kinds of beautiful photos you want in seconds. Mini sticker printer - can be used to print black and white photos, to make sticky notes, , memos, labels and etc.This sticker maker machine can cultivate children's creativity and parent-child activities.Mini portable smart photo printer for phone - must a for children, students, teachers and DIY on Christmas, Children's Day or Thanksgiving day. Mini printer is suitable for printing black and white photos, notes, notes, home, school and office, many subjects of applications, suitable for students, children, teachers, craft classes, work plans, shopping lists, etc. (Reminders: to avoid paper jams, wrap the printing paper tightly and load it into the printer). Colour:White Material:ABS Package Contents: 1 * mini printer 3 rolls * sticker(2 rolls included in the package and 1 roll included in the printer) 1 * USB 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.