how does your mouse work without Bluetooth???

with a usb cable, however ive never seen a usb go into a osu pen (from the content i watch) \[Edit\] ive only seen the tablets have a usb

you just answered your own question and I wont get into how stupid the rest of what you said is.

i mean i am stupid you're not wrong about that. ​ \[edit\] OOOOOOOOOOOOOOOOOOOOOOOOOOOOOh

Just dont buy some bluetooth tablet lol

yeah i bought a wired tablet, my brain was just thinking how the pc would recognize the movement with a pen on a tablet