They are not very strong but they work. I bought 2, each had a little problem. One had a buttonhole that was a bit small and didn't allow the button to pop out again. I opened the remote control and opened the hole with a knife. The second did not want to program smoothly. I kept going like this and eventually went through the whole programming process and it worked. The battery covers aren't the best and a few drops can render them useless, but so far so good. They help my relative not to have to press every available button to see if she can fix the problem. You no longer have to drive 30 minutes to get your TV working again. The visits are much more social and less about fixing things.
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