This Siemens OptiPoint 500 Key Module is a top-quality product that is made in Germany. It is designed to help streamline your telephone and answering system and is ideal for use in a business or office environment. With its high-quality design and reliable performance, this key module is the perfect addition to your existing system. It is easy to use and provides a range of features that will help you stay connected and productive throughout the day. So if you're looking for a top-quality key module that can help you get the most out of your telephone system, then this Siemens OptiPoint 500 Key Module is the perfect choice.