Designed by Professor Suk-Hyung Bae and developed by a joint venture between SM Instruments and Hyundai, the four pound 'camera' uses 30 sensitive microphones arranged in a spiral pattern to provide visual feedback on sound intensities. Think of it as a thermal camera that's more concerned with decibels than degrees.
And so its use isn't limited to a laboratory setting where it's tethered to equipment and displays via heavy cables, the SeeSv-S205 is designed to be highly portable, wireless, and ergonomic to hold. So it can be easily used to troubleshoot a noisy engine, listen for infestation problems in your walls, or just prove once and for all that your annoying friend needs to use their inside voice. More here.