I got one free on a Nokia flip a few years ago, no idea if it worked, but it didn't hurt, and for me, it was free. I've never pay for a thing like that!
In theory I guess they may work but the issue with cell phones is the power behind your radio and the objects in the way. I work in a big metal building which causes tons of problems with cell phones. We have a tower a mile away line of sight out our door and when I step outside I get full bars. Inside its a lot more sketchy. Adding one of those stickers won't really do you justice since its not a true extension of your antenna and doesn't boost your power.
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They do work. Those folks selling them are doing quite well!
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so arent the people that are selling the sunngie and all they have is a robe on backwards.
next thing they will think of is a sprint snuggie. it will probably be a johhny from the hospital, lol
There is no scientific reason that they would work. Behind the battery usually isn't even where the antenna is! Depending on the if the metal (and the type of metal) were real in the sticker it might actually make it worse.
