Silent keyboards where low noise and a quiet environment are essential. From courtrooms to libraries to call centers, Man & Machine's "Cool" line of keyboards are built to stay quiet while functioning like a standard computer keyboard. With no mechanical parts, there is no annoying clicking sound to bother others. Made from the most advanced materials, these ergonomic keyboards are built for comfort. Whether using one or hundreds keyboards packed into a tight space, you will enjoy the sounds of silence while effortlessly typing. And unlike a standard computer keyboard, these "Cool" waterproof keyboards are designed to be cleaned and disinfected with soap and water, minimizing the transfer of harmful germs and viruses.