Now you can keep your conversations private, annoy your coworkers and look like Bane — all at once. The gadget that makes it all happen is called Hushme. It bills itself as the "world's first voice mask for mobile phones." This absurd-looking contraption is designed to help you keep your conversations private when you're in a public space. The founders were inspired to create Hushme when having lunch with friends at a small and quiet café.