Bluetooth headsets are wireless devices that allow users to listen to audio and make phone calls without the need for cables. They connect to smartphones, tablets, and other compatible devices using Bluetooth technology, which enables short-range communication. These headsets often come with built-in microphones for hands-free calling and may include features like noise cancellation and voice commands. Most Bluetooth headsets are lightweight and portable, making them convenient for everyday use. They typically have a rechargeable battery that provides several hours of talk or listening time. Many models also offer controls for adjusting volume, skipping tracks, and answering calls directly from the headset.