Bluetooth has been around since 1998. That's old for a wireless technology, and as a result it often doesn't get the respect | it deserves. Yet it's probably the most widely used wireless standard today. Billions of Bluetooth radios are in operation worldwide. Last year, Bluetooth product vendors sold 1.7 billion devices. Why is this amazing technology so taken for granted? Probably because it's buried inside oth-er products. It isn't the mainstream communications link. Bluetooth's most popular application is the wireless link in cell-phone headsets. Most smart phones and mid-range feature phones have Bluetooth capability, and each year more cars and trucks are delivered with Bluetooth hands-free kits.
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