what are you thinking about using the bluetooth for?

For cell phones to ear pieces? Or for your computer?

We have a blue tooth mouse and we love it.

Basically, blue tooth as Bobbi have posted is just a radio wave wireless device.

The standard range is 30 feet between the two communicating objects.

there is still studies being done about the radio frequency of bluetooth might be harmful to humans. But there aren't any datas out there long enough to support that yet.

Blue tooth is very powerful, though...I can take my mouse to our kitchen and my cursor on the puter would still move...so.......

not sure...LOL