Instruction: Answer the given question using the supporting document.

Input:
Question: Zune Does anyone know if this product works with the Microsoft Zune?
Document: This device is so much better than the proprietary Zune or Ipod units. It doesn't take up much space, is portable, and works with any music player with a 1/8'' stereo jack. You can always buy a spare cable at Radioshack or another electronics store.
The slight curvature is excellent design choice, allowing the cords to pass underneath the unit unhindered. The curvature also adds that much more to the elegant appearance of the design, as well.Now,there is ONE question that I simply HAVE to ask! What is that apparatus connecting the PSP to the speakers in that certain picture above??!! I've been looking EVERYWHERE for it, and I just can't find it. If I could find out what it was I would buy it in a heartbeat, but I simply can't find it anywhere.If anyone know what it is, please leave a post here,or something, anything, to let everyone know what that device is.
So as others have said previously, quality and quantity of sound from this liitle unit is impressive. Works well with my Zune and my Dell computer. Comes with a variety of connector cables to handle many different hookups. Had a little issue with the jacks in the back of the unit not making good connection at first but this went away after a few cycles of use (not sure why, guessing the receptacles just seated themselves better in the unit). Main complaint is same others have noted, have to pull all the connections in the back of the unit to close the lid and turn it off.
Everything about this speaker device is great. It's portable, obviously (just about twice as long as an average wallet and the same width when closed), and the sound is great. It's sleek and shiny. Works perfectly in a small room and very well in a mid-sized room. I use it with my Zune (which is better than ipod btw) and it's just a joy. It's simple to set up and use, and the sound doesn't wash out when you turn the volume up (like the past 2 speaker sets I've gotten).The only problems I found were that it doesn't work with the A/C adapter if you have the batteries (AAA btw) in it at the same time.
Bought a Zune 4gb could not use ear buds or headphones. Everything is made for ipod I could only find altec lansing im414 dock station it wasn't practical for portable use. Glad I read all the reviews especially about opening the package. You really can slice your fingers off. Take your time when you open it.It's pretty loud from 1-20 scale you can only use a 5-7 in an ofc enviorment. Fills a 20 x 20 room well. 4gb Zune has no eq but if recordings are base heavy you will be ok.  Works A+ for Classical music B + for Jazz.
I simply got a $5.00 tiny camera case for the AC and mini stereo jack and that works fine. Anyone who grumbles about the lack of storage for the AC and stereo jack probably can't be satisfied anyways especially when they are saving up to $65.00 on this excellent sounding speaker.The volume is excellent and is more than ample for what it was intended. I think that the people who rated this saying the volume was not adequate for them were expecting boom box type sound for parties which is unreasonable for something this small.
The JBL on tour has been a very good buy for me. Since I travel a lot I always wanted a very compact speaker system for my laptop, and this is it.Its good looking and sleek and has good sound output. I am totally satisfied with the quality of sound that I get from this speaker.The only con would be that there is no indicator to show at what level your speaker volume is, so you don't know if it is at maximum, minimun or in between. But that just a small negative for an overall good product.
I am not sure if you can buy this JBL product any longer. This little speaker does a great job. It will not get so loud so as to drive you out of a room but it does a great job and travels very well. The volume is great for music inside or out - used at the beach and in the house.S/N is vey low and the batteries I use are rechargable - I get about 20 hours out of the batteries at a med volume level.If you lke good sound (I am a two channel tube person - highend listening) if you know tubes then you know what I am talking about.
If you are looking at this product...GET IT! !i was suprized when i heard the quality of sound on this speaker system.I will refer this product to anyone who is looking for a portibal speaker system.
Sufficient base, crisp not tinny and terrific volume for the size. Great for anyone who travels and wants to switch from ear buds for a change. A super product and great service from Amazon! Five stars!
Answer: Yes, this takes either 4 AA batteries or the AC adapter.