1. no settings (with instructions can change the password yourself)， as long as the card Unicom (China Unicom China Unicom tariff card or phone card) to the inside， this product will launch wifi signal， your laptop， cell phone， tablet， etc. can be use wifi function receives a signal to browse the Internet.

2. The highest stand up to 4-5 hours or so (1500 mAh high capacity)， compact mini， bank cards so big， if you need long standby customers can choose this， you can stand up for about 12 hours， with movement power features，

3. The router with mobile phones， laptops and other electronic products， there is a slight fever， is always normal circumstances， please be assured use.

4. micro usb standard excuse to use your phone， computer， mobile power charging treasure so you can give this product charge.

5. original genuine support seven days no reason to return a replacement， one year warranty， use of the process have any questions， you can always contact our customer service consulting.

6. Support China Unicom 3G network， super-stable， not dropped， perfectly compatible with 4G card.