http://www.brickhousesecurity.com/bluetooth-spy-earpiece.html -
The Micro Bluebooth Spy Earpiece fits deep within your ear and is so tiny, no one will be able to detect it. But don't worry, it can easily be removed with one of the included super strong magnets.

Once the Invisible Bluetooth Earpiece is in your ear, like a spy earpiece it will directly sync with any bluetooth cell phone letting the person on the other line hear exactly what's going on where you are, and giving them the ability to speak directly into your ear, without anyone in the room hearing it.