USB Watch Beep Prank Device Meet the USB Watch Beep Prank Device — the maddening phantom beep that sounds exactly like a watch alarm nobody can find. It's a deceptively innocent little stick that plugs into any USB port and, every few minutes, lets out a short watch-style beep from somewhere nobody can quite pinpoint. No app, no batteries, no setup — just harmless chaos for a friend, a family member, or the whole office. We built it on USB on purpose: spare ports are everywhere now — laptops, desktops, hubs, TVs, cars, even that unused power bank in a drawer or a USB-A dongle nobody's touched in months. If it has a port, it can beep. How It Works A small switch on the bottom lets you pick your chaos level: Random Mode A beep plays at unpredictable intervals — roughly every 3 to 8 minutes — so it's nearly impossible to guess when the next one is coming. 60 Minute Mode One beep, right on the hour, every hour — a slow-burn surprise for the long con. There's no on/off switch. The moment it's plugged in, it starts working — and it keeps going until someone finds it and pulls it out. That could be minutes, or it could be days. Setup (It's Genuinely Plug & Play) Pick your mode using the switch on the bottom — Random or 60 Minute. Plug it in to any USB Type-A port — computer, laptop, hub, TV, car, or power bank. Hide it behind a monitor or inside a USB hub for maximum stealth. Walk away and let the confusion spread.