I bought the 10 pack because it was cheaper than I could buy just one most places. That should have been a sign. I'm not sure if there's been a change in technology since these were developed, but I have not noticed any improvement in my reception since the addition, not has anyone else that I've given these to. If this product works, it does so poorly. Perhaps it would work better on a different style of phone, or an older one. None of the phones to which this product were attatched had external antennae, so that may also be a factor. Bottom line, this did not work for me, but it was a cheap way to find out.

great product low price would recommend to friends

Did not perform as expected didnt change call quality at all

useless. useless. useless. Did nothing to improve performance or signal reception.Do not sell this product.

The an\tenna seem to have made no difference. The proof will come later this week went we try the cell phones at our remote cabin in Florida where cell coverage os minimal and sometimes non -existant. If it helps there, I will revise my review to be more positive.

At first glance, I couldn't imagine this paper thin "sticker" being of any use. We live in a dip that plays havoc with technology. However our reception has improved both on the go and at home, so I recommend it...

We live in a remote valley and could not use our cell phones at home, now they work much better. We have recommended this product to family and friends.

Don't bother! great price and idea, but they just don't work

THIS IS TOTALLY A GREAT PRODUCT, AND YES I RECOMMEND IT. I USED TO ONLY GET ABOUT 4 LINES AS MY SIGNAL STRENGTH WHEN I WENT OUT 2 A STORE OR A RESTERAUNT. BUT NOW I GET MOSTLY ALL 7 BARS NO MATTER WHERE I AM, AND IT FITS RIGHT UNDER YOUR PHONES BATTERY(JUST DON'T LET IT TOUCH ANY MEATAL ON YOUR PHONE)!!!! THIS IS THE BEST PRODUCT EVER. SO YOU SHOULD TOTALLY BUY IT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!