Instruct: Classify a review into positive or negative sentiment.
Query: Didn't work

This card reader did not work at all. I tried it on two different computers and with 2 different 4 gigabyte microSDHC cards. I bought another card reader at the same time, and it worked. It came free with my order, but they charged me $6.00 for shipping. It is fair to say that I am not pleased with the whole transaction.