C1088 The Trick of a Child

"Cover your ears!" Ye Fei suddenly shouted.

Luckily, Ye Fei and the others had prepared lessons in advance. They knew that this kind of drone was not used to fly in the sky and record high-definition videos. They carried sound wave weapons with great lethality. If the human body was directly hit without any protective measures, If it was light, it would cause ringing and deaf. If it was heavy