Make sure that you have another battery for it. I've read a few customer reviews where the battery dies after a week or two of using it and it happened to me yesterday. The reviews also said that after replacing the battery, they have not had any issues with the unit and that the battery has been good since it's replacement. Apparently, they let these things sit on shelves for quite some time and run the battery down. I wish they would ship it with the battery out of the unit and let you put it in before you use it.