Using this PreSonus EarMix 16M is easy. First, connect it to your system. Since it doesn't have an external power supply, you can power it through PoE. Just plug in the necessary cables to start using it for your personal monitor mixing needs. When it comes to maintenance, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. If you notice any issues, check the connections first. That's all you need to know to make the most of this handy mixer.