Listening in on the neighbors is always way too tempting to resist. If your walls are just a little too thick, you can pick up this handy gadget to help you out. Instead of trying the usual trick of pressing a glass against the wall, you could have an actual gadget do the job. Plus, this is far more portable than carrying around a glass. Although keep in mind, the seller does warn that some countries do actually prohibit the ownership of spy devices. Which makes it seem all the more awesome.