XLR connectors are a type of electrical connector commonly used in professional audio equipment. They are characterized by their circular shape and three or more pins, which allow for balanced audio signals. This design helps reduce noise and interference, making them ideal for microphones, speakers, and mixing consoles. These connectors are known for their durability and secure locking mechanism, which prevents accidental disconnection during use. XLR connectors are widely used in live sound, recording studios, and broadcasting, ensuring high-quality audio transmission in various applications.