XLR is a type of audio connector commonly used in professional sound equipment. It features three pins and is designed to carry balanced audio signals, which helps reduce noise and interference. This makes XLR connectors popular in settings like concerts, studios, and broadcasting, where high-quality sound is essential. The name "XLR" stands for "external line return," and these connectors are often used with microphones, speakers, and mixing consoles. They are known for their durability and secure locking mechanism, ensuring that connections remain stable during performances. Many audio professionals rely on XLR connectors for their reliability and performance.