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Originally Posted by Donger
It's basically an RF technology that is designed to replaces cables. VERY short range; probably less than 25 feet in most applications.
For example, some cell phones have Bluetooth built-in and you can buy Bluetooth headsets. So, no need to have a cable from the cell phone to the headset.
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The spec itself is a 2.4Ghz RF signal so it can travel up to 100 meters easily.
The problem is that nobody is currently producing radios that can handle it. Practical range is around 30 feet.