Meicheng Audio Guide TG3-NP is the main way for speech guide to use it in museum, gallery, art museum, or outdoor scenery. To use TG3-NP, you can be your own masters. TG3-NP provides quality of speech and ability to interpret in many languages, you can choose any language you need, press the number buttons of what you want to realize, and you can stop or replay any part by your own mind. You can enjoy easy for the indoor or outdoor tour.