vi·bra·phone
noun/ˈvaɪbrəfəʊn/
/ˈvaɪbrəfəʊn/
[countable] (also informal vibes [plural])
- a musical instrument used especially in jazz that has two rows of metal bars that you hit, and a motor that makes them vibrate
颤音琴（常用于爵士乐） Word Origin1920s: from vibrato + -phone (see phone).