and a job for atty

what is so new about this? please, educate us!
It's a "docking station" for you phone.
So it's a screen, keyboard, battery in the shape of a laptop. But it uses your phone as the "computer". So you're substituting your phone for the "guts" of a laptop. You don't have to have two
devices...because there's really only one "guts"...the phone. But you get the ergonomic features of a laptop. Probably has speed trade-offs and lower video resolution compared to a laptop, but would be cheaper.
You could do it all separately...
buy a monitor and keyboard and use them for your phone. Phone probably has to have certain features...like HDMI video out, supports bluetooth keyboard, proper type of charge port.