Instruction: Answer the given question using the supporting document.

Input:
Question: Does the audio sync with a movie or is there noticeable lag?
Document: I bought this because a lot of people state that they use this to watch movies and youtube on it. I'm not sure if I'm overly sensitive to this but the audio and video are definitely not in sync. It is not major but just enough for it to throw me off and not use if for the reason I bought it. I played around by shifting the audio with Media Player Classic and it seemed to be around -170ms to get it close.
There are a few minor inconveniences to note. One, the power button, which is located on the back. It has no business being there. Two, the buttons on the top (bluetooth, +/- volume), which appear to be on the same level as the surface and you can't easily tell if you are pressing on them or not. It's not a major inconvenience, but it's noticeable.
I've found these all play a part in how noticeable the hum becomes, but I still stand by the quality of this unit as the hum has never been noticeable between songs, and can only be heard in close proximity to the speaker.) If I have any issue with sound quality so far, I'd say the highs sound a bit clipped at higher volumes.
The speaker has a very nice sound. It was easy to sync with my tablet.It will be a great improvement if it came with a remote to adjust the volume instead of having to get up to adjust.
This is a very nice sounding speaker that was extremely easy to setup and sync with my computers. It looks very nice anywhere in the house. I especially like the seperate volume controls that are on the speaker.
This product is just what I was looking for to link with my phone over Bluetooth. The speaker sits in my room and I can easily sync to my phone or any of my friends. The sound is great. The features are intuitive. I recommend this to anyone.
The speaker system sounds very good, but it has some major shortcomings and I was well aware of them.1. With no internal battery, you are plug reliant and sometimes that a real pain2. Having a volume button on a Bluetooth device that doesn't sync with the streaming device is a real pain.
As a self described "gadget guy" this was a necessity! as i sat deciding which to sync the bluetooth with first, my iPad or my iPod touch, i knew just looking at it that i liked this gadget. It is extremely simple to use which is great for the obvious reason, who needs more sequences of buttons to remember, not I.
But if you have media player software that lets you "lip sync", then that's not a problem.Finally, the bluetooth connection is very stable on my iPhone, but gets half lost on my Macbook after a while, which is extremely annoying, because when that happens you get a very distorted sound. It could well be my Macbook.Four stars only because the sound is good, but not outstanding, and because you can't battery-power it.
This is really innovative and worth buying for it's sound quality and compact design. Few observations on my side.- I had few difficulties for pairing this device with my laptop initially, But it has been really quick once after that.- The sound quality is really awesome and its gets sync with the player used.However I felt it should have been better if it had a rechargeable facility instead of keeping in power all the time.
Answer: That is an excellent question!  Most of the time that I use the speaker, it's to listen to music.  I just recently stared using to sync with video (via my laptop or Kindle Fire)  Most of the time, I notice no lag, especially if the video is stored local on my laptop (for example, the video podcasts I download.)  I was watching several streaming videos yesterday while using the D200 speaker.  Again, most of the time there was no noticeable lag.  I think I watched about 15 streaming videos yesterday with the speaker.  There was only one instance on one video that the video and the audio did not match up.  It my have been due more to quality of the streaming video - perhaps my internet connection slowed just a bit while streaming it.  Whatever the issue, I did notice a lag once in my experience with video and the speaker.  Since it was only once, and with a streaming video, I tend to think the issue was not with the speaker.