Thank you, I am ordering an wireless headphone to hear the TV.Not sure exactly what is being asked, but perhaps ... Bluetooth is the short distance wireless technology that is used in certain wireless devices to communicate with other devices. For example, it is used in wireless headphones to communicate with phones or computers, mice/keyboards for the same thing, cars to communicate with smart phones, etc.
It's got a short range, about 30 meters, roughly 100' and is not terribly secure.
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