Đàn nhị is a traditional Vietnamese string instrument, known for its unique sound and cultural significance. It typically has two strings and is played with a bow, producing a rich, expressive tone. The instrument is often used in Vietnamese folk music and classical performances, showcasing the country's musical heritage. The body of the đàn nhị is usually made from wood, with a round or oval shape. Musicians use their fingers to press the strings while drawing the bow across them, allowing for a variety of pitches and emotional expressions. This instrument plays a vital role in preserving and promoting Vietnamese music traditions.