Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Should this product have come with an ac adaptor?
Document: If you order a unit and it comes without the AC adaptor you might want to send it back as it may be a older stock unit  -better yet email the seller and be sure that their units include the AC adaptor. Again -GOgroove stopped including the AC adaptor for awhile, but have started including it again.FINAL NOTE: Had a neighborhood barbecue for July 4th and this little guy filled my large backyard with music -Everybody wanted one! Good price. Good product.
Although the sound was good, the product was not sturdy and started to come apart within the first few uses. It has no handle anywhere which makes the square shape difficult to carry.
You can run the Sonaverse BX from a USB wall charger, and it will play music simultaneous with charging the battery. The product comes with a Mini-USB charging cable but does NOT come with a wall charger or a 12 volt DC to USB car charger.2. Plays audio from an external device such as a smart phone, MP3 player, or Walkman, via the supplied 3.5mm x 24" patch cord3. Plays audio from a USB flash drive or SD card.
Makes good sound come out of my computer. Wish the cords were longer, though, as that can be a bit of a pain.
Simply effin awesome! Too bad it doesn't come in other colors! But really this thing is a beast! I can hear it over the paintline at work!
Speaker is great and loud. Pretty big actually but still portable. The charger is the same as the charger for a PS3 controller so that's good. It does not come with a wall charger so be aware of that
Gogroove is fine, but it didn't come with the adapter that plugs into the 110 outlet. Got one from Sony also and on special same price bigger box that included adapter to plug in!
I purchashed one of these earlier and it worked great-this one did not come with hookup for power at home!!!! BOGUS!!!! Why did my first order come with adapter and not this one!!!! Two words RIP OFF
That is a huge plus but i did get it for my Kindle fire Hd7 and it works great. The sounds is not bad for the size. The speakers plug right in to the Kindle headphone output and the cable does come with speakers with is another plus.
I never expected such a great sound from this small box. I connected to my computer and the sound just filled the room. Just proves good things do come in small packages. Really great price too!
Answer: Not necessary.  It charges with the included USB cable.