First, it’s not a microphone, it’s a radio. On the left is the switch, on the right is the frequency setting, and there's an FM/AM selection button on the column. After connecting it to a computer via USB, turn on the switch, the "ON THE AIR" light comes on, and the radio starts operating. This radio, designed by Dream Cheeky, is truly ingenious and evokes images of midnight live broadcast rooms and lonely DJs. It was once myymi's dream, I wonder in how many years it will come true......