Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Larry Eckstein

Ordered 2 Liftmaster 81 LM garage door remotes. Neither would work when I received them. Trouble shooting revealed they both had dead batteries. It took me a couple days to figure this out. At first I thought I was trying to program them wrong. I wan't. Defective product. After I replaced the batteries they both worked fine.