This Movek myMix personal monitor mixer is a great device, but note that it doesn't come with a power supply. However, it can be powered via PoE. There are a couple of known issues: the cover of the main knob is missing, yet the knob still works fine, and there are slight scratches on the screen.

Using this Movek myMix personal monitor mixer is quite simple. First, since it doesn't have a power supply included, you need to power it via PoE. When you're ready to use it, turn the main knob (even though its cover is missing, it still functions well) to adjust the settings as you like. As for the screen, be gentle with it as it already has slight scratches. For maintenance, keep it in a dry and clean place. Don't expose it to extreme temperatures or humidity. Regularly check the connections to make sure everything is working properly. And that's all you need to know to use and take care of your mixer.