Bluetooth is short-range wireless, meaning it covers a range of about 25 feet. Its most popular implementation has been hands-free headsets for cell phones, and indeed there are dozens of models to choose from, some of which are quite good. The headsets from Jabra, for example, are akin to jewelry and some are so small that it's easy to forget you've got one on your ear. If all you're doing is using a headset on your phone (a process called "pairing"), then these products are pretty solid.

But if you want to do more than have a cute headset for your cell phone users, you will quickly find that there is no real standard. Sure, there are plenty of phrases that look like standards. Just take a look at this acronym soup:

- A2DP (Advanced Audio Distribution)

- AVRCP (Audio Video Remote Control)

- BIP (Basic Imaging Profile)