I don't know what it does but it works great
351362
My nephew is a heavy gamer and cannot get enough of these. Every birthday and Christmas I slip one in his gift card and I'm a hit!
3902268
I'm not nearly technical enough to know the ins and outs of this type of product, but I received it as described and its worked well for me so far!
1100619
I just love this thing,but not sure of the power though. I use it for a lot of different stuff thanks!!!!
4489765
It was a great price and didn't expect much from it.  To my surprise this little guy works fantastic.  Going to buy another one just in case something happens to this one but I don't see me needing to for a while.
2505486
I don't know really how to measure its usefulness other than my wife saying "it's working great!" I guess that means it does the job.
2807866
I wasn't sure this would work for me or not, but it does, it is great and just what I needed.
1755827
It seems to work great.  I hopt to never have to use it, but it is easy to use if I ever do.
751225
It works pretty well. Took me a little while to figure out everything but it works the way it's supposed to.
3143134
It works much better than its description. I definitely recommend it...
4898591
Not sure I like this or what. it works fine I guess.
2965410
still trying to figure it out.....but it works great the way we use it.....I know it does more than we are using it for.........
I bought it because it was highly recommended.
4747232
It works great and it's worth it for the price!
534650
THis works great - a ltitle hard for me to figure out at first but I like it now!
4720157
not sure how it works or anything , because  i haven't had to use it yet so i really don't know .
4289452
Not sure why it works as well as it does but it does.
3047744
I really have no idea if it is functional.
3597145
I honestly really didn't know what to expect buying this, but for the price I figured I would try it. I think it works great for what it is. I just wanted  something to give my sound a little kick at home or amongst friends, so I'm happy with it.