Instruction: Answer the given question using the supporting document.

Input:
Question: What is not compatible with these speakers?
Document: These thing sounds great then any computer speakers out there for the price. Very Crisp sound. Nice highs, mids and subs.
Nice speakers specially for the Price.they dont get quite as loud as I was hoping but they look nice and get the Job done
This is a quality item. It's not a &#34;blaster&#34; stereo... But it gets the job done. It works as an output for record player that is very quiet w/ the built in speakers.
I really like this product because i needed new speakers. The size is pretty small but is great for aprts. The sound is actually loud for the size of it. I would recommend this.
)Obviously, having multiple pieces makes the Teinuro less practical as a travel speaker. Considering that I've only taken mine on the road on a few rare occasions, I don't much care. For the majority of my travels, I tend to stick with one of the all-in-one-box "iPod speakers" that I own.
I would have given these speakers a 5 but I ready so many reviews about how fantastic the sound was and it was supposed to be mind blowing.... I will say that the sound quality is amazing for paying this much.. I was just disappointed in how loud the music can go and how big the system actually is. Other than that? This product is great!! !
Because especially when you are playing an aggressive recording at high volume, the highs can be a bit strong. Of course doing this takes down the response around 10khz and above, as well as the highs around 5k that are the source of that slight harshness. But considering that this speaker has more energy around 10k than most "iPod speakers," it's an acceptable compromise.As I mentioned, the bass is accentuated as well.
If you are looking for a powerful speaker system, but do not have the space for floor standing speakers... this is the system for you! I have one I bought last year and I fell in love with them! I just bought this set for my son in law, for a computer I just built for him.This system packs a punch as a computer sound system. Just add &#34;DFX Audio Enhancer&#34; and you will be amazed!
The components are really cheap so I am thinking one of the components is failing or has failed. The subwoofer is actually well put together and can really pack a punch! You will not get super lows though as it cuts off around 60 Hz. The cabinet has a dual flared port tube which is a great feature eliminating distortion. At low levels the speakers and system sound flawless and are crisp and clear.
I'm obsessed with sound and I'll be perfectly honest - these little speakers are pretty great. However, they have just a few drawbacks. Unless a song is perfectly mastered, you are exposed to EVERY little flaw in the music. And, when it comes to the underground metal I prefer - it pretty much kills the bass. Seems that, unless you are listening to some really traditional music - you almost constantly have to adjust the volume/treble/bass.
Answer: Ummm.... that's kind of an unreasonable question.  How on earth could someone account for every device in the world that wouldn't work with them.  I think it's pretty simple to figure out what does work:  Any device that has an analog stereo output in the form of RCA jacks (like on the back of a component CD player), and any device that has a headphone jack.