Lilith directly changed the listening channel to 444.4MHz, and then pressed the play button.
The noise that was already quite unpleasant to hear outside became louder. This sound was like countless rusty iron sheets rubbing against each other, mixed with noises similar to fingernails scraping a blackboard and knives cutting glass... Listening to these noises for a few seconds would make one feel extremely irritated. If they were played continuously by the ear for twenty-four hours, no matter how tolerant a person was, they would probably go crazy.
"These sounds are really fucking annoying..." Lilith frowned, "Next, next!"
The three of them quickly went through the frequency bands from 111.1MHz to 999.9MHz, and even tried "special" frequencies like 123.4MHz and 987.6MHz.
Unfortunately, the only frequencies with audio were the nine bands from 111.1MHz to 999.9MHz.
