An audio connector is a component that allows audio signals to be transmitted between electronic devices. It is the physical interface where an audio cable plugs into a device, enabling sound to be sent or received. Audio connectors are found on many devices, including headphones, microphones, speakers, smartphones, computers, musical instruments, and professional audio equipment.

Audio connectors come in many shapes and sizes, each designed for specific types of audio signals and uses. Common examples include the 3.5 mm headphone jack, 6.35 mm (¼-inch) jack, RCA connectors, USB-C audio connectors, and XLR connectors used in professional audio systems. Some connectors carry analog audio signals, while others transmit digital audio data.

The main role of an audio connector is to ensure a secure and reliable connection so that sound can travel clearly from one device to another. The quality of the connector and how well it fits can affect sound performance, durability, and resistance to interference.

In simple terms, an audio connector is the point of connection that makes it possible for audio devices to share sound with each other.