As we rely more and more on our mobile phones, we want to have as many bars as possible. Some locations are just not that good for signals. The zBoost signal boosters and extenders are meant to handle those situations and give you the bars you need.
zBoost repeats and amplifies the signal and is frequency dependent. zBoost works with most phones (except Nextel) and comes in 3 models: Home, Car and Office.
For the car you get a Small bi-directional amplifier that powers from your 12V cigarette power adaptor. There is no need for a physical connection to your phone. It comes with an external magnetic mount antenna with 15 ft. cable and an internal (Rerad) patch antenna with 15 ft cable.
For home or office you can increase coverage up to 10,000 sq ft with the optional antenna.
Basically, zBoost improves indoor cell phone coverage by capturing and repeating the outside signal, bringing it into the building and enhancing it. This process creates a "Cell Zone" in the home, office or car.