Wi-Fi uses radio waves to send and receive information. A wireless router sends a signal through the air, which connects to your phone, laptop, or tablet, picks up and turns into data, like websites or videos. Your device also sends signals back to the router. The router is typically connected to the internet through a wire or cable to send and receive information from the wider web.
The more Mbps (megabits per second) or Gbps (gigabits per second) your internet plan offers, the faster your connection will be, making things like streaming, downloading, or video calling smoother.