LIVE — NEEDS WIFI This one runs on a server rather than as a self-contained offline file: a shared buzzer needs a single authority deciding who was first. No wifi in the room? Use Reflex, which does the same job by tapping team panels on this screen.

Live Buzzer · Host

connecting…

Room code

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Join at

IDLE

First buzz

ms after arming

Measured on the server, from the moment you armed to the moment the buzz arrived. Phones never send a time — a phone clock is wrong, and a phone that lied would win every round.

In the room 0

Nobody has joined yet. Read the code out, or send the join link.