C158 Vanishing Signal

Li Jun and the rest haven't come back yet, but now that they're here, the cell phone's signal is completely useless. I saw Captain Wang take something out of his bag, it's that kind of black walkie-talkie.

"Li Bing, did you hear that?"

When I walked over, Captain Wang glanced at me. There was a loud sound coming from the walkie-talkie. It seemed to be connected, but I didn't hear anyone's voice