Wired headphones are audio devices that connect to a sound source using a physical cable. They typically feature a 3.5mm audio jack, which plugs into devices like smartphones, computers, and music players. Wired headphones come in various styles, including over-ear, on-ear, and in-ear, providing different levels of comfort and sound isolation. These headphones are known for their reliable sound quality and consistent performance, as they do not rely on batteries or wireless signals. Many users prefer wired headphones for their simplicity and the absence of latency, making them ideal for activities like gaming and music production.