1. Wireless receiver: The pocket WiFi has a built-in wireless receiver to receive signals from the network service provider. These signals can be transmitted through a wired network (such as ADSL or fiber) or through a mobile network (such as 3G, 4G or 5G).
2. Wireless transmission: Once the signal is received, the pocket WiFi will convert it into a wireless signal and transmit it through the built-in wireless transmitter. In this way, the wireless signal can be captured by surrounding electronic devices (such as laptops, mobile phones, tablets, etc.).