A:AnswerThere is a headphone jack that you can connect a headphone. I have not tried it, but the specifications state 5 watt output, so that should power a small speaker.
A:AnswerI am not sure, It's not a smart TV but if you have the right tool it's possible. You can always go on YouTube for further details. That TV is perfect for people who don't care for streaming online movies. Once you plug it into the cable box it's ready to use.
A:AnswerThis TV uses a Vesa-standard 100mm x 100mm spacing mounting bracket. There are numerous bracket types (under counter, wall, ceiling, etc.) that you can buy at BestBuy or Amazon, etc. This TV is very light, only a few pounds, so a very lightweight mounting bracket is only needed.