The Internal Cell Phone Antenna Booster reduces static and increases cell phone reception in buildings, hallways, drive in tunnels, and more! Simply place the antenna under your battery to add the equivalent of a 4' antenna to your phone!
How it works:
The Internal Cell Phone Antenna Booster is a passive device designed to capture stray cell phone signals within the phone and re-radiate the signal to improve the phone's performance. This antenna is easy to install. Just slip it underneath the phone's battery, and enjoy clear, enhanced, static-free reception.
Made by: Tiger King