Wired earphones are small audio devices that connect to a music source using a cable. They typically feature a 3.5mm audio jack or a USB connector, allowing users to listen to music, podcasts, or other audio content directly from their devices. Wired earphones are popular for their simplicity and reliability, as they do not require batteries or charging. These earphones come in various styles, including in-ear, on-ear, and over-ear designs. Many models also include features like built-in microphones for phone calls and volume controls. Wired earphones are often favored for their sound quality and lower latency compared to wireless options.