yes.

using the walkie-talkie will involve radio, and you can only use it after applying for permission.

public intercom (using 419 ~ 411 MHz) does not need a license; Public network walkie-talkie does not need a license, but it needs to be registered with the network operator; Other walkie-talkies need to be licensed to the local radio management department and pay the annual frequency usage fee.

working principle of walkie-talkie: by transmitting radio frequency carrier signal, the filter receives the signal, and after filtering and frequency discrimination, the audio signal is obtained, and after processing, the voice information people need is obtained.