The bluetooth headset is going to universe. You can now get a Star Trek Barbie doll to be your bluetooth headset from one of the ebay seller. Does it really work? The seller mentioned it is still a prototype and not designed for everyday conversational use where the volume may be turned up above the echo thereshore.

According to the site

You can use me to make and receive calls with Bluetooth 1.1 compatible mobile phones. I have no wires. I work within a 10 meter radius of your phone so you can leave your mobile in your pocket or a bag. You turn me on/off, receive calls, make calls and pair me with other devices by pressing in the small of my back.

I consist of:

• Barbie doll (with a blue tooth)
• Startrek: dress, red knickers, black stockings, black boots
• Imbedded Bluetooth headset
• USB recharge connection
• USB extension lead
• User instructions
• Ear hook so you can extract the imbedded headset and use it standalone

You recharge me by plugging my USB connection into any computer. I have a Li-polymer rechargeable battery built in. Standby time 300 hours. Talk time 6-9 hours.

I will work with any Bluetooth 1.1 wireless device that supports headset or handsfree profile including mobile phones and computers. I am compatible with almost all Bluetooth-enabled mobile phones, including Sony Ericsson, Motorola, Nokia, Phillips, Samsung, Siemens, Cello, LG, NEC, Mitsubishi, and Sharp. You can use voice dialing through me if your phone supports it. So for example you could set your home number up to be called when you say 'Enterprise' and your boss when you say 'Captain Kirk'.