What is the anchor of CCTV weather forecast holding?

He holds a remote control, which mainly controls the appearance and ending of some pictures on the big screen. Some people say that recording equipment is impossible, because recording equipment can't be moved casually, and the frequency of moving sound will shake once it appears, unless it is a chest microphone. The recording system in the weather forecast is very good, consisting of several condenser microphones. The enrollment effect is first-class. Some people say that their rear is white, which is also wrong. There is a blue curtain behind them.