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Description
The listing, Cell Phone Signal BOOSTER has ended.
The cell antenna is a passive device designed to capture the stray radiation in the body of the phone and re-radiate the signal to improve the phone's performance. The antenna will work most efficiently when installed properly, when using the phone try to avoid placing your hand over the area where the internal antenna is installed.
Not very, like putting skinny decorations on your nails. Instructions come in package. They are sticky things you peel from the page and put inside your device under your battery, and it amplifies your signal.