Ends tomorrow at 10AM PT. ThinkGeek has the Star Trek TNG Bluetooth ComBadge for $56. Add to cart then add this ThinkGeek Anniversary T-Shirt to cart for $20 to reach $76 - $20 off with coupon code INKED [Exp 8/13] + $0 shipping ($75 minimum before free shirt code) = $56 shipped.

The ComBadge has an actual built-in mic for hands-free calling and will also earn you about 100,000 nerd points!