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A comment on Ask HN: Life-changing purchases since 2020? (Under $100 and under $1000). Parent comment

Re:Ask HN: Life-changing purchases since 2020? (Under $100 a... by idontwantthis on Thursday November 07, 2024 @03:42PM (#42080755)
They use feedback microphones to tune the output to bounce off of the walls. Or at least that’s what they claim.
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