A:AnswerThe sound comes from your pc.. This Monitor has no speakers and no blue tooth technology build in.. I suggest getting a TV monitor Samsung from Amazon. It has Bluetooth and cost 50$ more
A:AnswerWhat is your cable box's output connection?
This monitor has an HDMI jack and an HDMI cable is included,
I assume it would work with with Roku or a DVD player. If your cable box output is the same, then I believe the answer is yes.
A:AnswerIt has an hdmi port to yes it can be used with a firestick. But the issue is how will you hear sound? There's no speakers and you can't add Bluetooth
A:Answersustained pressure will cause this to happen. you could try to replace thru seller or Samsung (providing they accept this reason for the sake of customer satisfaction)
A:AnswerNo Roku.. Its just a plane monitor.. Get a TV monitor from Amazon.. That's why I returned this one and got myself a 32 inch tv monitor by Samsung. It works great and I watch TV on it