The Trek of Bluetooth

http://memory-alpha.org/en/wiki/Earpiece#Gallery_of_earpiece_styles

http://en.wikipedia.org/wiki/Bluetooth#List_of_applications

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From Dick Tracy-like Watch That Really Takes Calls to Wireless Video Uploads, Electronics Expo Still Generates Some Excitement

http://abcnews.go.com/Technology/story?id=6603829&page=1