No idea if this specific product works, but the idea has been around for a long time in the form of other similar products that use certain frequencies to repel insects and other bugs. The twist with this one is that it is in the form of a USB stick. It is specifically meant to repel mosquitoes.
I like it. I can picture myself on a tropical beach somewhere blogging while protecting myself from pesky skeeters!
(Please note prices are subject to change and the listed price is correct to the best of our knowledge at the time of posting)