Bulia, also known as Bamboo Horn, is a musical instrument of the Nu nationality.

Bria consists of a blowpipe and a resonator. The blowpipe is made of thin bamboo, 25 cm to 35 cm in length, 2 cm to 2.5 cm in diameter, with a knot at one end and an open end at the other end. The pipe body is beveled at one end of the remaining section, and the inner cavity of the exposed pipe is a blow hole, and the inner diameter of the blow hole is 1.5 cm to 2 cm. The resonator is made of a relatively thick piece of dragon bamboo, 30 cm to 40 cm in length and 7 cm to 10 cm in diameter, with a knot at one end and an open end at the other end.