laptop + phone · probe tone crosses the gap · left hand = pitch · right hand touch = volume · p2p · runs locally
on the laptop
click host session — a link appears instantly. send it to your phone. the phone opens it and joins automatically.
on the phone — join with code
how it works
place laptop and phone 2–3 ft apart on a table, facing each other.
the laptop speaker plays a probe tone. the phone mic measures how much arrives.
left hand — wave in the gap between devices → controls pitch.
right hand — slide up/down on the phone screen → controls volume.