Just purchased my second Evolve 30M online through Guitar Center. The unit arrived yesterday in great condition but was missing the backpack case for the poles and speaker. I called customer service and they said that the used unit didn't show any accessories. I told them that the photo for the listing clearly showed the case. They would not budge. This will be the last time I will buy something online from Guitar Center and not sure I will even buy anything from our local store. Buyer beware!