Fpv goggles and screen.
Yes it's slow and boring, but it's my first time flying fpv with goggles on. The only real frame drop was when I rounded a corner.
No a small eachine 010 whoop battery . It's got double sided tape on and stuck to the Tello battery on the back. Peels right off.
Really fun, almost a 7 minute flight. Could have gone longer but it was starting to get cold out at 1am lol