With the continuous development of technology and the continuous improvement of the national economy,mobile phones have become an indispensable communication tool for us,almost every person has one.But we found that walkie talkies have not been eliminated from the historical stage by mobile phones.Some industries still use them,especially chemical enterprises,where walkie talkies have a dominant position.From a technical perspective,there is a significant gap between walkie talkies and mobile phones,but walkie talkies do have advantages that cannot be replaced by mobile phones!