Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Be careful about battery

After putting lots of efforts to program it, it worked fine though still not perfectly. At least partially work with all my devices. Until one day, I notice the LCD is not as stable as it was. It dimmed after I push any button. I immediately realized the battery is out of juice. I put a fresh pair there, and then I found all the programming was lost. I need to reprogram it. I still remember all those programming pain and I gave up. I just fall back to use my 4 to 5 remotes.