C466 Listening(2)

Both of them were shocked. They didn't know why Lee Sheying took out this thing. Currently, the smallest eavesdropper was the size of a grain of rice. But Lee Sheying's listening device was like an old-fashioned colored television. How could Ye Fei not notice?

"It's not an ordinary eavesdropper, but a type of sound wave collector. I don't need to put a bug in his room