The bat signal itself is picked up by a MEMS microphone with a frequency range ... A sample of how that sounds is added in his write-up, which you can also check out after the break.

You really can't go wrong with the NZXT Capsule Elite if you're price range is $100 or less. It stands out against the rest ...

The system of microphones is reminiscent of a swarm ... Using high-frequency sound, much like bats, these robots navigate their way around tables, avoiding dropoffs and positioning themselves ...