There are two kinds of specifications: Long and short, the short one is called the Longbo collar, and the older one is called the Longbowan.

When playing Bilangbulang, the pipe body is placed upright, the pipe is held in both hands, the index finger, middle finger and ring finger of the right hand press the three holes, and the index finger and middle finger of the left hand press the two holes. The mouth contains the first reed, and it is played by the cyclic ventilation method, which can make the music continuous.

Yulang Bulang is made of bamboo and is made of five to seven sections of bamboo tubes of different lengths and thicknesses. It is very similar to the Lilie of the Li nationality.