Who will be using the PA system?
You may already own a microphone, or you’re planning on adding your new PA system to a shared environment where multiple users will supply their own mics. In these situations, select a system that does not include a microphone. However, if you’re building a presentation system from the bottom up, you may want a product that includes a microphone. Most come with a wired microphone, but all are compatible with wireless mic systems. Also, some PA systems include two or more microphone inputs, thus enabling more than one speaker to use the system simultaneously.