This has to do with the radio frequency being used. A higher frequency can carry more data but has a harder time penetrating objects. Most cell phone use frequ

This has to do with the radio frequency being used. A higher frequency can carry more data but has a harder time penetrating objects. Most cell phone use frequencies below 1GHz. Years ago a consumer wifi company released a router combo that I thinkc could do 10 Gigabits per second, over 10 times our current normal speed. But they used a frequency above 60GHz and simply holding a piece of paper directly between the computer and router line of sight caused the connection to drop.