However, not everyone is aware that audio equipment  are also systems for simultaneous interpretation, and for mobile interpretation that is becoming more and more popular. In the latter case, the interpreter speaks in situ and travels all the time with his listeners, for example in factories, cities, fairs, etc.

What is important for users of the audio equipment , which also serves as a mobile system for interpretation, is the simplicity of its use. Users do not require any technical support or detailed instructions for use. Emitters and receivers are intuitive, their use is very simple. Even people who have trouble learning how their own smartphone works find no trouble running the tour guide system.