Although 321 Express (where this item was ordered) told they are located in Oregon, this item took 3 weeks and one day to arrive in Michigan BECAUSE it arrived directly from Beijeng China in a mailing envelope with no paper work, and no manufacturer's number on the item. The roller ball on the Mighty Mouse does not move the scroll bar to the left as it should. I would never have ordered from this 321 Express [ironic name] had I known ahead of time how long it would take. Who would have dreamed it was going to be shipped directly from China? The shipping was only $4.99, but we did not know that would put our item on "the slow boat from China". The shipping time was not known until AFTER the order was placed. We ordered from this company because it had the best price. The lower price was not worth the wait, for a partially [?] DEFECTIVE Mighty Mouse. I will never buy from 321 Express again. VKJ