This is the USB MIC Pro, which might be the world’s smallest USB microphone. Thee USB MIC Pro is able to pick up all sounds from more than 50 feet away. It offers a high sensitivity, high fidelity omnidirectional microphone and a 5.1 virtual surround sound output.
The USB MIC Pro measures only 1 3/4-inch x 7/8-inch X 9/16-inch. It costs $79. There is also USB MIC 1 , which is a little bigger and less sensitive. MIC 1 is priced at $59.