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If you've ever dreamed of jamming FM, cellphones, cordless phones, GPSes, Wi-Fi, Bluetooth, or various other RF stations, the Wave Bubble is a small, Creative Commons-licensed design that you can build together yourself. This isn't an easy project, so if you're not familiar with SMT soldering, you may want to hop down to ITT Tech and make some friends.

Oh, and this device is kinda illegal, seeing as you can block frequencies that aren't supposed to be blocked. But it should be fun to take into a crowded theater.


Project Page [Ladyada - Thanks Phil!]