audio guide
noun/ˈɔːdiəʊ ɡaɪd/
/ˈɔːdiəʊ ɡaɪd/
- a small device, usually with headphones, that visitors to a museum, gallery, city, etc. can hold in their hand and use to listen to recorded information while they are walking around
导览机；语音导览机 - The museum provides free audio guides.
博物馆提供免费的导览机。
- The museum provides free audio guides.