A:AnswerYes a headphone Jack in the back can plug anything with 3.5 mm Jack in and also control the volume of the connected devices via the button on the bottom of the monitor
A:AnswerIt IS adjustable in height.
Mine sits a great deal lower than the one in the guideline picture. Measuring to the top is is 18.5" from my desk .
It doesn't seem as though it wants to go much lower than this.
(I don't really want to force it. It is mounted on a plunger system which I am disinclined to test past it's current ready-height for me.)
A:AnswerPlease reach out to our support team on Facebook at @LGUSSupport and use #VOC in your first message to our social media support team. Please be sure to provide your name, phone number, address, email, model/serial numbers, and date of purchase and we will be happy to assist you. There are policies and procedures in place to ensure resolutions are consistent and fair. I am confident that we will work to provide an agreeable resolution.^Venette