Like Cel-Fi PRO, Cel-Fi DUO and DUO+ smart signal boosters are designed to dramatically improve HD voice and data coverage in up to two bands for 3G, 4G, LTE. All new patented echo cancellation algorithms enable them to offer higher signal levels throughout the coverage area than competing brands. Convenience is another factor they are good for: A wall plug cell phone booster without outside antenna.
Solving Cellular Service Problems.
They improve 3G/4G/LTE cellular service by eliminating dead zones and dropped calls. With up to 100 dB of gain, they will improve cellular service like no other in the market. It covers up to 15,000 square feet of indoor space per system. It is fully self contained and self-configuring, requiring no external antennas or wiring. Simply plug it in to boost indoor cellular coverage.
Move Coverage Unit further away from the Network Unit to maximize coverage. The total coverage area equals twice the distance between the Network Unit and the Coverage Unit. The maximum distance is up to 100 dB path loss.