A:AnswerHello! The player comes supplied with the AC power cord, the remote control and batteries for the remote. You would need to acquire an HDMI cable and the player will be fully operational. - S
A:AnswerA player from the manufacturer will not play region 2 dvds. I actually tried one after I got the unit because the manual had some vague terminology that made it seem like it might, but the disc didn't work. Region 1 and A plays on a USA-based player.
A:AnswerThis does not have an amplifier to power speakers. It's designed to be connected to a receiver and/or TV, and lets one of those drive the speakers.
A:AnswerHello and thank your for your question! The DP-UB820-K player supports screen mirroring. You can use a Miracast-compatible smartphone or similar device to display the screen of your phone or tablet on the TV via the player. - S
A:AnswerThe 420 doesn't support Dolby Vision while the 820 does. If you don't have a TV that supports Dolby Vision or don't care about that, then this is a cheaper option. It is apparently louder than the 820 player, though I have not personally used the 420 player to confirm it. My 820 doesn't make noise in the years that I have used it.
A:AnswerHello and thank you for your question! The DP-UB820-K has screen mirroring capabilities. It is a built-in feature and you can access it from the "Home Network" option in the "Home" menu. You would need a Miracast®-compatible smartphone or similar device to show the content on your screen. Hope this helps! - S