buzzer: buzzer is a wind instrument made of pottery and is mostly played by children and has limited sound facilities. Its shape is varied and is made in the form of various symbols. The structure of its edge is like a ney labak. Although it is not very common in Iran today, it has been common in most parts of Iran in the past. Appearance: The buzzer consists of the sound and body production section. The opening is like a lipstick and has a narrow slit that strikes the edge and produces sound. The body of the buzzer has a different appearance but has two main features including: A group has a hollow body that sometimes makes holes to change the sound. A group whose bodies are full of symbols or sculptures and have no sound holes. The existence of various symbols of buzzer in ancient cultures has an allegorical aspect. In some areas it is known as Qulqulk because by pouring water into their chamber and playing it, the sound of water rushing can be heard. Executive technique: buzzer is mostly used as a children's toy and therefore has a simple executive technique. However, in soundtracks that have holes in the audio enclosure, the technique is a bit difficult to play.