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Hi, I'm Sarah. I have some problems with my iphone – low signal connection and I waste a lot of time to seek for an additional bar in it to make just a call or use my mobile Internet. I know well that there are a lot of problems with phone connection and such a situation happens because of several signal barriers.
I’m very satisfied with AT4000W! It was unbearable when I couldn’t use my mobile phone. That horrible signal drove me up the wall. I live in underground room. The mobile signal was absent because there was not enough coverage.