This is a simple PA system that can be used to call orders or play music over. You need a few extra parts if you want to be able to do both at the same time.
Indoor/Outdoor speakers – https://amzn.to/2JXTEwU (These come in pairs, I would get two pairs)
Speaker wire – https://amzn.to/2JTJLAi (you’ll need to get as much as you need. These wires should be run from the amp to each speaker with no cuts or connections)
Mircophone – https://amzn.to/2ylMaCx (this mic has a mute on/off button and stand)
Microphone cable – https://amzn.to/2JVm4aL (this is so you can connect the above mic into the amp)
Speaker Amp – https://amzn.to/2tkLHuz (this powers the speakers and lets you connect everything)