What is the principle of unlimited traffic of portable wifi card?

Use the wireless Internet chip (sim card) provided by wireless operators to establish a wifi hotspot sharing network.

With this device, you can expand the Internet connection without wifi access.

Wifi network is used by Internet terminals.

Among them, portable wifi that only uses 2G, 3G or 4G as the network source is also called mifi.

Unlimited traffic portable wifi

Function:

The network without wifi * * * will enjoy the wifi signal to form a temporary wireless local area network, access the Internet, and provide it to one or more wireless Internet terminals, which is convenient for mobile office and provides an online environment for business trips.

Unlimited flow portable wifi charging treasure

Features: details xiaoyu2vip

1, convenient, not limited by network cable, can be used anytime and anywhere.

2. Economical and practical. For travelers, some high-end hotels don't offer or charge high fees. Using this scheme can reduce expenses.

3, security, portable wifi belongs exclusively to users or familiar people, avoiding the risk of information leakage caused by using public WiFi.

4, simple operation, no need to set up, boot can be used.

This kind of equipment is light and easy to use.

6. Connect multiple devices at the same time.

At present, there are two kinds of portable wifi with unlimited traffic: one is in the form of charging treasure and the other is in the form of mobile phone!