I just bought this speaker and it is awesome! I am currently without a desktop, but have my iPad with all my music and simply wanted to have a louder format. Perfect fit. What was annoying when i opened the box was there is no wall plug converter for the USB charging cable. What i found out is that the new iPad converter wont work since it has too high an output. The old iPhone converter, however,(the 3) is rated perfectly (5v - 1A) for the speaker and has the USB port. I hope this helps some one else, since the instructions in the box are unclear about how you are supposed to charge the speaker battery without making additional purchases.