The Invisio Q7 Bluetooth headset is an upgrade to the old Jawbone headset, also made by Nextlink. These work the same way, by using vibrations from your jaw to pick up what you’re saying—great for noisy environments like that new club Manhandled down on 58th.
https://gizmodo.com/bengalboys-grease-the-lens-make-a-call-jawbone-heads-115638
The Q7 should be available by Q4 2006, exclusively in Radio Shacks.
Invisio Q7 headset uses your jaw as a microphone [Sci Fi Tech]
