Tro u

The tro u (Khmer: ទ្រអ៊ូ; also spelled tro ou) is a traditional instrument from Cambodia. It is a low-pitched, two-stringed vertical fiddle with a coconut shell body that has one end covered with animal skin. Its two strings are made of silk, gut, nylon, or metal, running over a bridge made of bamboo, wood, bone, ivory, or seashell.

It is similar to the Thai saw u and the Chinese yehu, although the latter instrument has a wooden rather than animal skin face.