Brain computer interfaces are basically ways for your brain to communicate with the technology around you. For example a disabled person could use it to activate different tech items around them. You could also just use it for convenience like turning the TV and opening doors. There are huge possibilities for this tech item. The way it works is that your brain is full of neurons that relay messages with electric signals.The the computer detects the electric signals that your body uses to send messages and uses them to READ YOUR MIND and figure out what you want to do to the tech item that your trying to control.
There was an article on this from https://computer.howstuffworks.com/brain-computer-in
terface.htm
