This little humidifier/diffuser is so nice! It isn't very big, but the flame pattern and light selection are beautiful, especially the way it lights up the very fine mist through the top. It was very easy to set up, in spite of the instructions being super tiny! I had to take pics of them with my phone so I could enlarge them. I have included the English instructions in photos so you can see! You can independently change the color settings for the fireplace part inside the box, and the same or another color for the mist, or you can let it sequence through all of the colors. Changing these settings is simply done by pressing the button for each of these controls. This starts the color changes. If you want to lock it on a color, you press it again. Mainly, you need to ensure you do not overfill with water. I would also recommend placing it on a surface that cannot be damaged by moisture because of the mist, even though I did not notice any accumulation of moisture around it. I would rather just be safe than sorry. Also, place it somewhere that it won't be bumped which could cause water to slosh and spill. The instructions state that you can add up to 3 drops of essential oil to the water reservoir. I added just 2 and wished I had only added 1! Could be the oil I used had more fragrance than some others. So, I would recommend adding just 1 drop, then wait and see if it is enough. You can always add more. It is powered with a USB C plug. The diffuser comes with a remote control with buttons for everything, and it is magnetic, so you can attach it to something metal and not lose it because it is fairly small. The box also has control buttons on the lower right side, so you can control it without the remote, as well. I feel this is a good value and helps to replace some of the humidity lost when running the a/c and heat. I will enjoy it myself, and feel it would make a nice gift, as well. My video shows how the remote works to change the settings.