Does the gsm wireless data module need to be plugged in?

GSM wireless data module is a wireless technology, which can transmit data by radio waves without inserting network cable.

GSM wireless data module is a small computer module, which is used to send and receive data, including text, audio and images, on the GSM network. It is usually used for mobile devices such as smart phones and notebook computers, and can also be used for non-mobile devices such as automobiles, home appliances and smart homes.