Why Does Bluetooth Only Work Within 10 Meters?

There are two classes or Bluetooth devices: class I, and class II. The only difference is the signal strength. Class II devices have a range of up to 10 meters. Class I devices have a range of up to 100 meters. All headsets are of class I, so, they will work within 10 meters (some more, some less - this depends on headset model) from your computer. Bluetooth v1.2 headsets, potentially, can have slightly wider range, but this depends on radio interference level in your area.