LISBURN RD.

00:00

This box was spotted by Matilde on the 20th of May 2012 at 5:30pm:
“I spotted this box on my way walking to Tesco. It is placed right beside a bus stop. It’s sound is very faint. The lowest sound so far.”

Producing a continuous sound composed of:
306Hz
609Hz
951Hz
1102Hz
1254Hz
1595Hz
2126Hz
2353Hz
2998Hz

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