Using the Behringer Xenyx Q802USB Mixer is a breeze. For live performances, connect your microphones to the mic inputs and your stereo devices to the stereo inputs. Adjust the volume and tone using the knobs on the front panel. The 'one - knob' compressors can quickly enhance the dynamic range of your sound. When recording, connect the mixer to your computer via the USB/audio interface. Then, use the free software you downloaded from behringer.com to start recording and editing. Remember to place the mixer on a stable surface to avoid accidental knocks. Keep it away from extreme temperatures and humidity. Regularly clean the knobs and buttons with a soft, dry cloth. If you're not using it for a long time, unplug it from the power source to save energy and protect the device.