Hands free, bluetooth headsets are devices that connect to cell phones and other devices. The device allows you to communicate with the person you are connected to without holding the phone up to your face. The devices use a technology known as Bluetooth, which is a short range, wireless technology that allows data to be transmitted securely to a device. Bluetooth is supported by many other devices, such as personal computers, cars, tablet computers, and some gaming consoles. This allows for your Bluetooth headset to potentially work with many different devices. When used with a phone, it allows you to talk without holding up the phone to your ear. This can make driving a bit easier, and in some locations, legal. Hands free headsets are required by law in certain areas to speak on the phone. This is due to the number of accidents caused by people talking on cell phones.