Using the Behringer Xenyx QX1204USB Mixer is a breeze. First, connect it to your computer via the built - in USB/audio interface. Then, download the free audio recording, editing, and podcasting software along with 150 instrument/effect plug - ins from behringer.com. For live performances, you can use the 'one - knob' compressors to control the dynamics of your sound, and the Klark Teknik FX processor to add amazing effects. The 'British' 3 - band EQs can give your music a warm and musical tone. When using the aux sends, the pre/post fader switchable one is great for monitoring or FX applications, while the post fader one can be used for internal FX or as an external send. Remember, the wireless system is not included, so if you want to use wireless functionality, you'll need to purchase a high - quality Behringer digital wireless system separately. As for maintenance, keep the mixer in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. The long - wearing faders and sealed rotary controls are designed to last, but gentle handling will ensure their longevity. The 'Planet Earth' switching power supply is energy - efficient, but make sure to use it within the 100 - 240 V~ range for maximum performance and safety.