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A headset is a communication device that combines a microphone with headphones. It is designed to be worn on the head, typically resting over the ears and with the microphone positioned near the user's mouth. Headsets are commonly used for hands-free telephone calls, voice chat in online gaming, and video conferencing. They allow for private listening and clear voice transmission, making them a popular accessory for personal and professional use.

The primary components of a headset are the headphones and the microphone. The headphones deliver audio to the user, while the microphone captures the user's voice. These components are usually connected by a flexible band that goes over the head, or by a rigid band that rests on the back of the head. Some headsets also feature volume controls and mute buttons directly on the earcup or along the cable.

Headsets come in various forms, including wired and wireless models. Wired headsets connect to devices via a physical cable, often using a 3.5mm audio jack or USB connection. Wireless headsets utilize Bluetooth or other radio frequency technologies to connect to devices, offering greater freedom of movement. Different types of microphones are also employed, such as noise-canceling microphones that reduce background noise for clearer communication. Headsets are integral to many modern communication systems, facilitating interactive and efficient dialogue.