tin whistle

small inexpensive wind instrument similar to a recorder, fipple flute

The tin whistle, also called the tinwhistle, whistle, pennywhistle, or Irish whistle, is a simple six-holed woodwind instrument. The Irish words for the instrument are feadóg ('whistle' or 'flute') or feadóg stáin ('tin whistle'); feadóga stáin is the plural. It can be described as an end blown fipple flute, putting it in the same category as the flageolet, recorder, Native American flute, and many other woodwind instruments found in traditional music.
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Noun
1. an inexpensive fipple flute
(synonym) pennywhistle, whistle
(hypernym) fipple flute, fipple pipe, recorder, vertical flute