Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy this!

This coby fm transmitter just does not work. I received the transmitter, tried it out in my car, and not only did it never work, it actually blew the fuse in my cigarette lighter/adapter, which was a pain to replace. I returned it to Amazon for a replacement, only to find that the replacement ALSO did not work. I finally returned both for a refund, and will find another product-- this Coby product is poorly made and just does not work (the instructions are also quite sketchy, with incorrect grammar and spelling).