It requires fast broadband telecommunications at home, and the wireless network card is equipped with Unicom 3G (not expensive, but the traffic is limited. You can choose one without watching videos, and one is almost enough. If you watch video, you can install telecom on the wireless network card (expensive, unlimited traffic, and frequent internet access is not enough).

Personally, I think it's good to install Netcom at home. The network speed is not as fast as that of telecom, but there is not much difference.