Bluetooth headphones are wireless audio devices that offer a hands-free and cord-free listening experience. They connect to electronic devices such as smartphones, tablets, and computers through the use of Bluetooth technology, which is a standard for exchanging data over short distances. Here's a more detailed description:

"Bluetooth headphones provide a wireless audio experience, allowing users to listen to music, watch videos, or engage in phone calls without the constraints of wires. These headphones communicate with devices using a Bluetooth protocol, which ensures a stable and interference-free connection. They come in various styles, including over-ear, on-ear, and in-ear designs, and often feature additional functionalities such as noise cancellation, built-in microphones for calls, and touch controls for easy operation. The convenience of Bluetooth headphones lies in their portability and the ability to maintain a connection with the source device from a distance, typically up to *0 meters (*3 feet), depending on the specific model and environmental factors."