Using the Behringer Xenyx X1003B is easy. First, connect your microphones to the mic preamps. If you're using a condenser microphone, turn on the phantom power. For other audio sources, use the stereo line inputs. Adjust the 60 - mm faders to control the volume levels accurately. You can use the post - fader FX send control to connect external effects processors and the pre - EQ monitor send control for an independent monitoring mix. When it comes to power, you can either use the regular power source or opt for battery operation (make sure to get 9V batteries separately). As for maintenance, keep the mixer clean from dust. Wipe it gently with a soft, dry cloth. Avoid exposing it to extreme temperatures or humidity. Also, when not in use, store it in a safe place to prevent any physical damage.