Using this Movek myMix personal monitor mixer is easy. First, since it doesn't come with a power supply, connect it to a PoE source to power it up. When adjusting the audio settings, use the main knob even though its cover is missing - it still functions well. Be careful around the screen as it has scratches. To keep it in good shape, keep it in a clean and dry place. Avoid touching the screen too roughly to prevent further damage. And when not in use, unplug it from the power source to save energy.